The Roman numeral for 21 is XXI
XXI is the Roman numeral for 21.
XXI
X is 10 and I is 1. XXI is 21.
The Roman numeral of XXI is equivalent to 21
21 = XXI
21
XXI
The Roman numeral for 21 is XXI
The Roman numeral XXI represents the number 21
If you mean MMXXI then it is the equivalent of 2021
It is: XXI-VII-MMXII