Il numero romano MMMMCDXXII nel sistema decimale vale: 4422.
MMMMCDXXII in latino si scrive quattuor milia quadringenti viginti duo,
mentre in italiano quattromilaquattrocentoventidue.
MMMMCDIII, MMMMCDIV, MMMMCDV, MMMMCDVI, MMMMCDVII, MMMMCDVIII, MMMMCDIX, MMMMCDX, MMMMCDXI, MMMMCDXII, MMMMCDXIII, MMMMCDXIV, MMMMCDXV, MMMMCDXVI, MMMMCDXVII, MMMMCDXVIII, MMMMCDXIX, MMMMCDXX, MMMMCDXXI, MMMMCDXXIII, MMMMCDXXIV, MMMMCDXXV, MMMMCDXXVI, MMMMCDXXVII, MMMMCDXXVIII, MMMMCDXXIX, MMMMCDXXX, MMMMCDXXXI, MMMMCDXXXII, MMMMCDXXXIII, MMMMCDXXXIV, MMMMCDXXXV, MMMMCDXXXVI, MMMMCDXXXVII, MMMMCDXXXVIII, MMMMCDXXXIX, MMMMCDXL, MMMMCDXLI