2,000,000,000,000,000/21,000,000 = 95,238,095 per BTC.
2,000 trillion? That's high I think. USD M3 estimates are like 15 trillion IIRC.
I'm just playing with numbers but if you took all outstanding derivatives (1.4 quadrillion) and all money and debt instruments and collapsed them into BTC 2,000 trillion would be conservative.