22463536021 has 2 divisors, whose sum is σ = 22463536022. Its totient is φ = 22463536020.

The previous prime is 22463535977. The next prime is 22463536037. The reversal of 22463536021 is 12063536422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17851632100 + 4611903921 = 133610^2 + 67911^2 .

It is a cyclic number.

It is not a de Polignac number, because 22463536021 - 2⁷ = 22463535893 is a prime.

It is a super-2 number, since 2×22463536021² (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 (22463536321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11231768010 + 11231768011.

It is an arithmetic number, because the mean of its divisors is an integer number (11231768011).

Almost surely, 2^22463536021 is an apocalyptic number.

It is an amenable number.

22463536021 is a deficient number, since it is larger than the sum of its proper divisors (1).

22463536021 is an equidigital number, since it uses as much as digits as its factorization.

22463536021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 34.

The spelling of 22463536021 in words is "twenty-two billion, four hundred sixty-three million, five hundred thirty-six thousand, twenty-one".