Fatto matematico: 2222 is the smallest number divisible by a 1-digit prime, a 2-digit prime, and a 3-digit prime.
Trivia: 2222 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Data storica: January 30th is the day in 1975 that the Monitor National Marine Sanctuary is established as the first United States National Marine Sanctuary.