22612297 has 2 divisors, whose sum is σ = 22612298. Its totient is φ = 22612296.

The previous prime is 22612253. The next prime is 22612309. The reversal of 22612297 is 79221622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15768841 + 6843456 = 3971^2 + 2616^2 .

It is a cyclic number.

It is not a de Polignac number, because 22612297 - 2⁷ = 22612169 is a prime.

It is a super-2 number, since 2×22612297² = 1022631951232418, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22612207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11306148 + 11306149.

It is an arithmetic number, because the mean of its divisors is an integer number (11306149).

Almost surely, 2^22612297 is an apocalyptic number.

It is an amenable number.

22612297 is a deficient number, since it is larger than the sum of its proper divisors (1).

22612297 is an equidigital number, since it uses as much as digits as its factorization.

22612297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 31.

The square root of 22612297 is about 4755.2389004129. The cubic root of 22612297 is about 282.7796984453.

The spelling of 22612297 in words is "twenty-two million, six hundred twelve thousand, two hundred ninety-seven".