Il numero romano MMMCDXXII nel sistema decimale vale: 3422.
MMMCDXXII in latino si scrive tria milia quadringenti viginti duo,
mentre in italiano tremilaquattrocentoventidue.
MMMCDIII, MMMCDIV, MMMCDV, MMMCDVI, MMMCDVII, MMMCDVIII, MMMCDIX, MMMCDX, MMMCDXI, MMMCDXII, MMMCDXIII, MMMCDXIV, MMMCDXV, MMMCDXVI, MMMCDXVII, MMMCDXVIII, MMMCDXIX, MMMCDXX, MMMCDXXI, MMMCDXXIII, MMMCDXXIV, MMMCDXXV, MMMCDXXVI, MMMCDXXVII, MMMCDXXVIII, MMMCDXXIX, MMMCDXXX, MMMCDXXXI, MMMCDXXXII, MMMCDXXXIII, MMMCDXXXIV, MMMCDXXXV, MMMCDXXXVI, MMMCDXXXVII, MMMCDXXXVIII, MMMCDXXXIX, MMMCDXL, MMMCDXLI