General fact: 2209 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Mathematical fact: 2209 is a Tribonacci-like number starting from 1, 1, and 1.
Trivia: 2209 is an unremarkable number.
Historical date: January 17th is the day in 1608 that Emperor Susenyos of Ethiopia surprises an Oromo army at Ebenat; his army reportedly kills 12,000 Oromo at the cost of 400 men.