No, the number "googol" does not need to be capitalized any more than "million" does.
do you use a capital letter for the word knighted
googol
No.
The word googol is pronounced like the search engine Google - with a stress on the first syllable.
The first word of the question should begin with a capital letter.
Unless it is the first word in a sentence. Otherwise - no capital letter
googol
Capital = Haupt Capital city - Hauptstadt Capital letter - Hauptbuchstabe
A Capital Letter on the first word.
no
No
No