To the nearest ten, 120
To the nearest hundred, 100
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Finding 18 percent of a number is the same as multiplying the number by 0.18. In this instance, 0.18 x 121 = 21.78. Rounded to the nearest tenth, this is equal to 21.8.
200
121 is a square number
121 is not an even number.
121, 242, 363, 484, and an infinite number of other multiples of 121 are divisible by 121.