If the mass of "Thingy Thing" is to a planet of the mass of 420^420 kg (Presuming the planet is perfectly spherical and whatnot) as the average mass of an ant is to Planet Earth, what is the mass of "Thingy Thing"?
I would like to know the answer for this because reasons.
Reasons involving overpowered fantasy monster thingies.
EDIT: In Kilograms, of course.