Fait général: 22920 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 22920 is a boring number.
Culture générale: 22920 is an unremarkable number.
Date historique: October 1st is the day in 1189 that Gerard de Ridefort, grandmaster of the Knights Templar since 1184, is killed in the Siege of Acre.