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What is the Square Root of 21221?

The square root of 21221 is 145.674294232. Calculate another value or review the exact form, nearby perfect powers, and verification.

Answer

Square Root√21221 = 145.674294232
CalculatedNon-perfect squareIrrational
Exact form√21221
Perfect squareNo
Number typeIrrational
Verification145.6742942322 ≈ 21221

On this page

How the answer is calculated

We solve x2 = 21221. The resulting value is x = 145.674294232.

Verification: 145.6742942322 ≈ 21221.

Simplified radical form

The square root of 21221 in simplified radical form is √21221.

There are no square factors that can be taken outside the radical, so √21221 is already in simplest radical form.

Nearest Perfect squares

PositionBaseValue
Lower or equal14521025
Upper or equal14621316

Nearby square roots

NumberSquare root
√21218145.6639969244
√21219145.6674294412
√21220145.670861877
√21221145.674294232
√21222145.6777265061
√21223145.6811586994
√21224145.6845908118

Number properties

Is 21221 a perfect square?

No. Its square root is not a whole number.

Is the square root rational or irrational?

√21221 is irrational because 21221 is not a perfect square.

Visual guide

Square Root function graph

See how the result changes as the input moves across positive and negative values. Square roots are shown for non-negative inputs; cube roots continue through negative inputs.

Common questions

Frequently asked questions

It asks for the number that, when raised to the power of 2, equals 21221.