More than awesome. The pinnacle of awesome.
At some point there became a need for a word that was above 'awesome' since 'awesome' and 'amazing' are now used for how well you brushed your teeth, a pedestrian cup of coffee or for holding the door open for one another.
Awesometilliar is in that same class of words that is competing for that spot.
I just inherited fifty thousand dollars and I'm going to travel the world!
No! That's awesometilliar!