Hecho general: 12422 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Hecho matemático: 12422 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Trivia: 12422 is an uninteresting number.
Fecha histórica: January 3rd is the day in 1888 that the refracting telescope at the Lick Observatory, measuring 91 cm in diameter, is used for the first time.