No, "twenty-ninth" is hyphenated. When writing out ordinal numbers that combine a number and a suffix (like -th), a hyphen is used to connect the two parts. So, it should be written as "twenty-ninth."
No, "twenty second" is not hyphenated when used as a noun or an adjective. It should be written as two separate words, such as "twenty second" when referring to the ordinal number. However, if used in a compound adjective before a noun, it can be hyphenated, as in "twenty-second anniversary."
Annals of the Twenty-Ninth Century was created in 1874.
The twenty ninth sultan of the Ottoman Empire was Mustafa IV.
Annals of the Twenty-Ninth Century has 758 pages.
Twenty-ninth Amendment of the Constitution of Ireland happened in 2011.
29th or twenty-ninth
This is in two words, "twenty fourth," hyphenated in the US as twenty-fourth (24th).
Twenty ninth
happy twenty ninth anniversary = joyeux anniversaire pour tes 29 ans
It is neither. The word is hyphenated, like so: twenty-third.
29th
Twenty ninth of September is spelt 'le vingt-neuf septembre' in French.