121 in Roman Numerals

CXXI

121 in Roman numerals is CXXI, and is spelled one hundred twenty-one.

How 121 breaks down

To write 121 in Roman numerals, combine C (100), XX (20) and I (1) to get CXXI.

ValueRoman
100C
20XX
1I
121CXXI

You can open 121 in the converter or browse the full Roman numerals chart.