Which is correct: "one hundred and one apple" or "one hundred and one apples"?
The first version seems more likely, but there are "101 Dalmatians".
Consider a sentence where the apples are the subject.
One hundred and one apple rolls down the street. That sounds pretty strange. A disagreement with the verb would be even worse.
It's more than one apple, so it should be plural.
Plural form -> greater than one.
Hence, 'one hundred and one APPLES' is CORRECT. (101 > 1)
A good way to handle this is to simply use numerals, particularly for three-digit numbers:
That said, if you must spell out the number for some reason, the noun should agree with the entire value, not just the last digit:
one hundred and one apples.
You may find some style guides that recommend omitting the and:
one hundred one apples.