At least, that's how it seems ahead of Tuesday night's Mega Millions drawing for an estimated $1.05 billion top prize. It's a huge sum of money, but such giant jackpots have become far more common, with five prizes topping $1 billion since 2021 — and one jackpot reaching $2.04 billion in 2022. Rising interest rates coupled with changes to the odds of winning are also big reasons the prizes grow so large.