CCCXCIV
The Roman numeral for 11 is XI.
To write the date in Roman numerals, you would convert the numbers in the date to their Roman numeral equivalents. For example, January 1, 2022 would be written as I.I.MMXXII.
Z is not a Roman numeral. The Roman numerals are I, V, X, L, C, D, M.
The Roman numeral MMCLXIV represents the number 2164
That would be MMXIII. M is one thousand, so you write two of them. X is ten, and I is one so you write three of them.
394 = CCCXCIV in Roman numerals
As a Roman numeral 326 is CCCXXVI
2001 as a roman numeral is MMI
It is: 500 = D as a Roman numeral
CCLXMMMCDXXIV is the Roman Numeral of 263424.
In today's modern usage of Roman numerals, CCCXCIV represents 394, but the ancient Romans would have converted and notated the equivalent of 394 into Roman numerals entirely quite differently.
The Roman numeral for 295 is CCXCV.
The Roman numeral for 4 is written as IV.
It is: 38 = XXXVIII as a Roman numeral
1 = I as a Roman numeral
Roman Numeral MMDLXII
1566 coverted into a Roman numeral is MDLXVI