How Do you Pronounce twenty one billion million thousand one hundred twenty one in english ?

twenty one billion million thousand one hundred twenty one Pronunciation in english(IPA) :

ˈtwɛnti wʌn ˈbɪljən ˈmɪljən ˈθaʊz(ə)nd wʌn ˈhʌndrəd ˈtwɛnti wʌn