Man pages matching name strtoull in section 3:

strtoull.3.en	debian 10 / manpages-dev
strtoull.3.es	debian 10 / manpages-es
strtoull.3.ja	debian 10 / manpages-ja-dev
strtoull.3.en	debian 11 / manpages-dev
strtoull.3.es	debian 11 / manpages-es-dev
strtoull.3.fr	debian 11 / manpages-fr-dev
strtoull.3.ja	debian 11 / manpages-ja-dev
strtoull.3.nl	debian 11 / manpages-nl-dev
strtoull.3.en	debian 12 / manpages-dev
strtoull.3.fr	debian 12 / manpages-fr-dev
strtoull.3.ja	debian 12 / manpages-ja-dev
strtoull.3.nl	debian 12 / manpages-nl-dev