22063261 has 6 divisors (see below), whose sum is σ = 24251486. Its totient is φ = 20057400.

The previous prime is 22063247. The next prime is 22063271. The reversal of 22063261 is 16236022.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 13176900 + 8886361 = 3630^2 + 2981^2 .

It is not a de Polignac number, because 22063261 - 2⁷ = 22063133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22063201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 91050 + ... + 91291.

Almost surely, 2^22063261 is an apocalyptic number.

It is an amenable number.

22063261 is a deficient number, since it is larger than the sum of its proper divisors (2188225).

22063261 is a wasteful number, since it uses less digits than its factorization.

22063261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182363 (or 182352 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 22063261 is about 4697.1545642016. The cubic root of 22063261 is about 280.4722515163.

Adding to 22063261 its reverse (16236022), we get a palindrome (38299283).

The spelling of 22063261 in words is "twenty-two million, sixty-three thousand, two hundred sixty-one".