Yes, it is.
.22 is closer to zero than to one.
Rounding to the nearest whole number, it is 22.
22 is a whole number. Whole numbers can't be mixed numbers.
21.98 rounded to the nearest whole number is 22
22
21.635 to the nearest whole number is 22
22 is a whole number and cannot be a decimal.
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.
22.
It is 22.
Yes, 22 is an integer. An integer is any whole number, whether positive, negative, or zero, and since 22 is a whole number greater than zero, it qualifies as an integer.
It is: 22