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

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

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