12

12 (twelve) is a positive integer following 11 and preceding 13. Its ordinal form is written "12th" or "twelfth." == Properties == 12 is an. A set of 12 objects is sometimes called a dozen. In Greek-based naming systems, 12 is associated with prefix dodeka-, and with prefix duodeci- in Latin systems. === See also === *Twelfty *gross *great gross