Yeah, since the $640 million was split three ways, I suppose that the $105 million could be the amount after taxes for winning the $213 million won by each of the three. (I think I could get by on that.)
$213 million, after taxes, is about $149 million, because you pay about 30% taxes to the state and feds.
The $105 million (I do believe that’s before taxes as well, so expect a cheque of “only” $70 million) is probably the base amount that gets paid out. If you are willing to wait out the entire 20 year period, then the money gets invested by the state to which then you’d receive an annuity. By the time the state has paid you out, because of the interest made, you’d be entititled to the entire $213 million, subtract taxes.