Umptillion 

A very great, yet indeterminate number, probably greater than a million. as umpteen, but much greater.

Indeed, there are umptillion worlds beyond our own, of which we can only conjecture the properties.

Umptillion by Naked Henry May 15, 2005

umbrillion

um⋅bril⋅li⋅on –interjection 1. an exclamation expressing wonder or pleasure at two people have the same idea or thought at the same time.

1.You were thinking of eating at Sweet Tomatoes too? UMBRILLION!

umbrillion by Shing Poro BingBong May 28, 2010

Umptillionaire 

umptillionaire on whose wealth is estimated at an umptillion or umptillions ( as of dollars)
-umptillionaire bought the whole entire earth!!
-umptillionaire makes umptillionairesses
- umptillionaire drives cars over $600,000 dollars
-umptillionaire dresses in outfits over $400,000 dollars

everybody don't know where riches coming from, it must be umptillionaire!!!!

Umptillionaire by Vigintillionaire July 25, 2009

umptyzillion 

An unspecific but extremely high number, used mostly in situations where the number is causing exasperation or irritation.

I had to drag my boyfriend away from the TV umptyzillion times before he finally turned that stupid show off.

Those salespeople have called me umptyzillion times, even though I keep telling them not to call again!

umptyzillion by Robin BD December 26, 2008