Pronunciation: [ɒɹˈɪli͡ən] (IPA)
Correct spelling for the English word "orillion" is [ɒɹˈɪli͡ən], [ɒɹˈɪliən], [ɒ_ɹ_ˈɪ_l_iə_n] (IPA phonetic alphabet).
Correct spelling for orillion