.22 is closer to zero than to one.
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21.635 to the nearest whole number is 22
Rounding to the nearest whole number, it is 22.
22.
22
21.5 to the nearest whole number is 22. When rounding a decimal number to the nearest whole number, you look at the digit to the right of the decimal point. If it is 5 or greater, you round up to the next whole number. In this case, 21.5 has a digit of 5 in the tenths place, so it rounds up to 22.