22521123113 has 2 divisors, whose sum is σ = 22521123114. Its totient is φ = 22521123112.

The previous prime is 22521123091. The next prime is 22521123241. The reversal of 22521123113 is 31132112522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17912342569 + 4608780544 = 133837^2 + 67888^2 .

It is a cyclic number.

It is not a de Polignac number, because 22521123113 - 2¹⁰ = 22521122089 is a prime.

It is not a weakly prime, because it can be changed into another prime (22521123913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11260561556 + 11260561557.

It is an arithmetic number, because the mean of its divisors is an integer number (11260561557).

Almost surely, 2^22521123113 is an apocalyptic number.

It is an amenable number.

22521123113 is a deficient number, since it is larger than the sum of its proper divisors (1).

22521123113 is an equidigital number, since it uses as much as digits as its factorization.

22521123113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 720, while the sum is 23.

Adding to 22521123113 its reverse (31132112522), we get a palindrome (53653235635).

The spelling of 22521123113 in words is "twenty-two billion, five hundred twenty-one million, one hundred twenty-three thousand, one hundred thirteen".