Yeah, left off the tens (of trillions) digit when I calculated it.

Just use the debt clock http://www.usdebtclock.org/

It shows $46,571 per citizen and, more importantly, $129,902 per tax payer.

Also note - $1,026,647 unfunded liabilities per tax payer.

Unfunded liabilities over long periods of time should be indexed for inflation: they shrink. this is why it's totally absurd to throw around the unfunded liabilities figures like they're meaningful. In 100 years, at 3% inflation, $1,026,647 will be worth $53,419 2010 dollars. Obviously those liabilities are paid out over time, so that's not a proper indexed figure, but it does give a point of reference.

You're mistaken. Unfunded liabilities are a net present value calculation that factors in a discount rate. They take inflation into account.