22534513121 has 2 divisors, whose sum is σ = 22534513122. Its totient is φ = 22534513120.

The previous prime is 22534513069. The next prime is 22534513123. The reversal of 22534513121 is 12131543522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11522949025 + 11011564096 = 107345^2 + 104936^2 .

It is a cyclic number.

It is not a de Polignac number, because 22534513121 - 2¹⁴ = 22534496737 is a prime.

It is a Sophie Germain prime.

Together with 22534513123, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (22534513123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11267256560 + 11267256561.

It is an arithmetic number, because the mean of its divisors is an integer number (11267256561).

Almost surely, 2^22534513121 is an apocalyptic number.

It is an amenable number.

22534513121 is a deficient number, since it is larger than the sum of its proper divisors (1).

22534513121 is an equidigital number, since it uses as much as digits as its factorization.

22534513121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7200, while the sum is 29.

The spelling of 22534513121 in words is "twenty-two billion, five hundred thirty-four million, five hundred thirteen thousand, one hundred twenty-one".