twenty-second vs 22nd

twenty-second and 22nd both are adjectives.

Word	Noun	Adjective	Verb	Adverb
twenty-second	No	Yes	No	No
22nd	No	Yes	No	No

As adjectives, twenty-second and 22nd are synonyms defined as:

twenty-second (adjective)	22nd (adjective)
coming next after the twenty-first in position	coming next after the twenty-first in position