Hecho general: 22397 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Hecho matemático: 22397 is an unremarkable number.
Trivia: 22397 is a boring number.
Fecha histórica: April 26th is the day in 1478 that the Pazzi attack Lorenzo de' Medici and kill his brother Giuliano during High Mass in the Duomo of Florence.