22974695021 has 2 divisors, whose sum is σ = 22974695022. Its totient is φ = 22974695020.

The previous prime is 22974694997. The next prime is 22974695039. The reversal of 22974695021 is 12059647922.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15897679396 + 7077015625 = 126086^2 + 84125^2 .

It is a cyclic number.

It is not a de Polignac number, because 22974695021 - 2³⁴ = 5794825837 is a prime.

It is a super-2 number, since 2×22974695021² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22974695041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11487347510 + 11487347511.

It is an arithmetic number, because the mean of its divisors is an integer number (11487347511).

Almost surely, 2^22974695021 is an apocalyptic number.

It is an amenable number.

22974695021 is a deficient number, since it is larger than the sum of its proper divisors (1).

22974695021 is an equidigital number, since it uses as much as digits as its factorization.

22974695021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 544320, while the sum is 47.

The spelling of 22974695021 in words is "twenty-two billion, nine hundred seventy-four million, six hundred ninety-five thousand, twenty-one".