Schmiganticillion is equal to 10(3*10↑↑schmittyillion+2)4,182,001(↓↓schmittyillion-2)+3. It is a massive illion in tier schmittyillion, in which the creator, Trakaplex, has also admitted he finally fixed the operation which has changed the definitions of both inphixillion and helpsophiaisflirtingmeillion. The number was meant to be part of Bowers' system. As a result, the definition of schmittyillion was even changed. First reported on Massive Numbers Wiki, then personal blog, this number was announced ever since the struggle of defining schmittyillion. It was originally meant to be the largest of Bowers' system, but the creator promised even more larger illions. He stated that if everybody understood the operation, schmittyillion will get a series.
It is based off "schmittyillion" and the word "gigantic".