Frequency, draw history and statistical context for the number 21 across all historical Mega Millions draws.
Across 1,000 historical Mega Millions draws, the number 21 has appeared 66 times — that's 6.60% of all draws. That's 8% below the expected rate for a uniformly random draw, putting it among the cold numbers.
Number 21 was last drawn 1 draw ago. Whether that makes it "due" is a long-running debate among lottery players — the mathematical answer is that lottery draws are independent events, so a number's history has no influence on the next draw. But the Strategy Lab lets you bias your picks toward or away from overdue numbers if you want to play with that pattern.