22895147021 has 2 divisors, whose sum is σ = 22895147022. Its totient is φ = 22895147020.

The previous prime is 22895147017. The next prime is 22895147029. The reversal of 22895147021 is 12074159822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19412848900 + 3482298121 = 139330^2 + 59011^2 .

It is a cyclic number.

It is not a de Polignac number, because 22895147021 - 2² = 22895147017 is a prime.

It is a super-2 number, since 2×22895147021² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22895147021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22895147029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11447573510 + 11447573511.

It is an arithmetic number, because the mean of its divisors is an integer number (11447573511).

Almost surely, 2^22895147021 is an apocalyptic number.

It is an amenable number.

22895147021 is a deficient number, since it is larger than the sum of its proper divisors (1).

22895147021 is an equidigital number, since it uses as much as digits as its factorization.

22895147021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80640, while the sum is 41.

The spelling of 22895147021 in words is "twenty-two billion, eight hundred ninety-five million, one hundred forty-seven thousand, twenty-one".