I left the game run overnight once I reached the satanic blobs and had my idle army hit the darkfire blob (which gives the best exp/time in the game due to probably a coding error that made him drop 10x the exp of other monsters around him. Monsters 2x the exp take 100x the time to kill, etc.).
With a good leveled interest, your gold multiplies every 10min, so if you have say 100m gold and 20% interest, you have 120m after 10min, 145m after 20min, etc. So it takes less than an hour to double your gold if you don't use it, letting the game idle overnight with the game opened, you reach enormous numbers.
I ended up with some 30 digit long number, spent like 10% of it on leveling the gears until they eventually also required so much gold that the price overlapped the lvl. Then I basically rushed through all the satanic blobs to reach the last monster, but realized that slaying him took forever and the exp/fame gain wasn't worth grinding him to get to the 1T fame.
So I let it idle on the darkfire blobs again until I reached it.
Sadly, the 1T medal didn't unlock for me, probably because the game and window were open for many hours by the time I reached it and the connection to the sites servers was probably cut.
There's no feature to resent my stats for the medals, so in the worst case I'd have to restart the entire game and idle another few days.... no thanks.