Fatto generale: 2124 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 2124 is an uninteresting number.
Trivia: 2124 is a boring number.
Data storica: October 24th is the day in 1947 that Walt Disney testifies before the House Un-American Activities Committee, naming Disney employees he believes to be communists.