22521111023 has 2 divisors, whose sum is σ = 22521111024. Its totient is φ = 22521111022.

The previous prime is 22521110977. The next prime is 22521111047. The reversal of 22521111023 is 32011112522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22521111023 - 2¹⁴ = 22521094639 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 22521110986 and 22521111004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22521111323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11260555511 + 11260555512.

It is an arithmetic number, because the mean of its divisors is an integer number (11260555512).

Almost surely, 2^22521111023 is an apocalyptic number.

22521111023 is a deficient number, since it is larger than the sum of its proper divisors (1).

22521111023 is an equidigital number, since it uses as much as digits as its factorization.

22521111023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 22521111023 its reverse (32011112522), we get a palindrome (54532223545).

The spelling of 22521111023 in words is "twenty-two billion, five hundred twenty-one million, one hundred eleven thousand, twenty-three".