What is mmxx in roman numerals?

MMXX is the Roman numeral representation of the year 2020. In Roman numerals, M represents 1000, and XX represents 20. Thus, MMXX is a combination of two M's (2000) and two X's (20), representing the year 2020. Roman numerals are still used today in various contexts, such as numbering chapters in books, indicating years on clocks and watches, and identifying monarchs and popes.