gajillion vs nonillion

gajillion

noun

  • An unspecified large number (of); a gazillion. 

nonillion

noun

  • An unspecified very large number. 

num

  • 10³⁰. 

  • 10⁵⁴. 

How often have the words gajillion and nonillion occurred in a corpus of books? (source: Google Ngram Viewer )