What is DXXI in Roman Numerals?

What is the value of DXXI in Roman numerals?

The Roman numeral DXXI is equivalent to 521 in Arabic numerals.

Therefore, if you want to write the digit 521 using Roman symbols, you must use the letter combination DXXI. This letter combination is equivalent in Roman writing to the Arabic numeral Five hundred twenty one.

DXXI = 521

How should the Roman numeral DXXI be read?

It should be noted that Roman letters symbolizing numbers should be read and written from left to right and in the order from largest to smallest.

If the Roman numeral DXXI is found in a text, it should be read as a natural number, that is, in this case it should be read as "Five hundred twenty one".