How many trucks would it take to carry a trillion dollars in currency?.. (in say, twentys, or even hundreds)
I think you'd be amazed.
A stack of one trillion 20 dollar bills would weigh more than 50,000 tons.
Assuming that you are using a standard 48 foot box on a tractor-trailer with a cargo capacity of 22 tons, you'd need almost 2500 rigs to haul that load.
I'd opt for a check.