Fatto matematico: 4112 is the number of necklaces possible with 17 beads, each being one of 2 colors.
Trivia: 4112 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Data storica: April 4th is the day in 1994 that Marc Andreessen and Jim Clark found Netscape Communications Corporation under the name "Mosaic Communications Corporation".