Anania received his early education at the local Armenian schools, possibly at Dprevank monastery, where he studied sacred texts and earlier Armenian authors.
Due to the lack of teachers and books in Armenia, he decided to travel to the Byzantine Empire (the "land of the Greeks") to study mathematics.
After first traveling to Theodosiopolis, then to the Byzantine-controlled province of Fourth Armenia, where he studied under Christosatur for six months.
He then left to find a better teacher and learned about Tychicus, who was based at the monastery (or martyrium) of Saint Eugenios in Trebizond.
Greenwood has speculated that Tychicus, not mentioned elsewhere, may actually be Stephanus of Alexandria.

Anania devoted a significant part of his autobiography to Tychicus (born c. 560), with whom he spent eight years in the 620s or 630s.
Tychicus had studied the Armenian language and its literature while serving in the Byzantine army in Armenia.
Wounded by the Persians, he retired from the military and later studied in Alexandria, Rome, and Constantinople.
Tychicus later returned to his native Trebizond, where he established a school c. 615.

Tychicus taught many students from Constantinople (including from the imperial court) and was renowned among Byzantine kings.
He provided Anania special attention and taught him What Anania called a "perfect knowledge of mathematics".
In Tychicus's large library, Anania found sacred and secular Greek authors, including works on the sciences, medicine, chronology, and history.
Anania considered Tychicus to have been "predestined by God for the introduction of science into Armenia."
Anania received his early education at the local Armenian schools, possibly at Dprevank monastery, where he studied sacred texts and earlier Armenian authors. Due to the lack of teachers and books in Armenia, he decided to travel to the Byzantine Empire (the "land of the Greeks") to study mathematics. After first traveling to Theodosiopolis, then to the Byzantine-controlled province of Fourth Armenia, where he studied under Christosatur for six months. He then left to find a better teacher and learned about Tychicus, who was based at the monastery (or martyrium) of Saint Eugenios in Trebizond. Greenwood has speculated that Tychicus, not mentioned elsewhere, may actually be Stephanus of Alexandria.
Anania devoted a significant part of his autobiography to Tychicus (born c. 560), with whom he spent eight years in the 620s or 630s. Tychicus had studied the Armenian language and its literature while serving in the Byzantine army in Armenia. Wounded by the Persians, he retired from the military and later studied in Alexandria, Rome, and Constantinople. Tychicus later returned to his native Trebizond, where he established a school c. 615.
Tychicus taught many students from Constantinople (including from the imperial court) and was renowned among Byzantine kings. He provided Anania special attention and taught him What Anania called a "perfect knowledge of mathematics". In Tychicus's large library, Anania found sacred and secular Greek authors, including works on the sciences, medicine, chronology, and history. Anania considered Tychicus to have been "predestined by God for the introduction of science into Armenia."
Anania Shirakatsi