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

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

wʌn ˈbɪljən fʌɪv ˈhʌndrəd ˈzɪərəʊ ˈmɪljən eɪt ˈθaʊz(ə)nd ˈtwɛnti wʌn