MMX = 2010
2010 is: MMX
MCMXI is the number 1911 in roman numerals. This is a notation used earlier for representing numbers.
The year 2012 in Roman numerals would be written as MMXII. The RapidTables website has a converter that can be used to convert standard numbers in to Roman numerals.
MMX is Roman Numerals for the year 2010.
MMX is Roman for 2010.2010 = MMX
The year 1958 is written as MCMLVIII in Roman numerals.
Roman Numerals are meant for numbers not words. However, since January is the first month the year simply writing "I" followed by the day and year would suffice. Example: January 1st, 2013 - I/I/MMXIII
2010
MDCCLXXVI
MCMXLVII
MCMXCIX
MDMLXXXIV