23022161156021 has 2 divisors, whose sum is σ = 23022161156022. Its totient is φ = 23022161156020.

The previous prime is 23022161156009. The next prime is 23022161156041. The reversal of 23022161156021 is 12065116122032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21103274068900 + 1918887087121 = 4593830^2 + 1385239^2 .

It is a cyclic number.

It is not a de Polignac number, because 23022161156021 - 2³⁸ = 22747283249077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23022161156041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11511080578010 + 11511080578011.

It is an arithmetic number, because the mean of its divisors is an integer number (11511080578011).

Almost surely, 2^{23022161156021} is an apocalyptic number.

It is an amenable number.

23022161156021 is a deficient number, since it is larger than the sum of its proper divisors (1).

23022161156021 is an equidigital number, since it uses as much as digits as its factorization.

23022161156021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 32.

Adding to 23022161156021 its reverse (12065116122032), we get a palindrome (35087277278053).

The spelling of 23022161156021 in words is "twenty-three trillion, twenty-two billion, one hundred sixty-one million, one hundred fifty-six thousand, twenty-one".