MMMMXXII

MMMMXXII is the Roman numeral representation of the year 2022. The numeral is constructed by combining individual Roman numeral symbols. M represents 1000, and so four M's would signify 4000. X represents 10, and so two X's signify 20. I represents 1, and so two I's signify 2. Therefore, MMMMXXII equates to 1000 + 1000 + 1000 + 1000 + 10 + 10 + 1 + 1, which totals 4022.

However, Roman numeral notation has specific rules regarding repetition. A symbol representing 10^x (I, X, C, M) cannot be repeated more than three times consecutively. This rule is often applied to ensure clarity and avoid excessively long representations. The number 4 is typically represented as IV (5-1) rather than IIII. Similarly, 40 is XL (50-10) instead of XXXX.

Given these conventions, MMMMXXII, while arithmetically decodable as 4022, deviates from standard Roman numeral formation for numbers above 3999. The year 2022 in Roman numerals is more commonly and correctly written as MMXXII, where MM represents 2000, XX represents 20, and II represents 2. This adheres to the principle of additive notation and avoids the repetition of M more than three times. The sequence MMMM is generally not used in standard Roman numeral representation for years or other large numbers.