Il numero romano MCDXXII nel sistema decimale vale: 1422.
MCDXXII in latino si scrive mille quadringenti viginti duo,
mentre in italiano millequattrocentoventidue.
MCDIII, MCDIV, MCDV, MCDVI, MCDVII, MCDVIII, MCDIX, MCDX, MCDXI, MCDXII, MCDXIII, MCDXIV, MCDXV, MCDXVI, MCDXVII, MCDXVIII, MCDXIX, MCDXX, MCDXXI, MCDXXIII, MCDXXIV, MCDXXV, MCDXXVI, MCDXXVII, MCDXXVIII, MCDXXIX, MCDXXX, MCDXXXI, MCDXXXII, MCDXXXIII, MCDXXXIV, MCDXXXV, MCDXXXVI, MCDXXXVII, MCDXXXVIII, MCDXXXIX, MCDXL, MCDXLI