The number 1221 is written in Roman numerals like this: MCCXXI
MCCXXI = 1221
Split the number by place value and write each part in Roman numerals:
Put the parts together: M + CC + XX + I = MCCXXI.
As a year, 1221 is written MCCXXI. You often see dates like this in film credits, on buildings and on monuments.
Going the other way? See the Roman numeral MCCXXI.
1220 in Roman numerals: MCCXX
1222 in Roman numerals: MCCXXII
Calculate the conversion of any number and its equivalent in Roman numerals with our Roman numerals converter.