122521552631 has 2 divisors, whose sum is σ = 122521552632. Its totient is φ = 122521552630.

The previous prime is 122521552627. The next prime is 122521552633. The reversal of 122521552631 is 136255125221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122521552631 - 2² = 122521552627 is a prime.

It is a super-2 number, since 2×122521552631² (a number of 23 digits) contains 22 as substring.

Together with 122521552633, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 122521552591 and 122521552600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122521552633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61260776315 + 61260776316.

It is an arithmetic number, because the mean of its divisors is an integer number (61260776316).

Almost surely, 2^122521552631 is an apocalyptic number.

122521552631 is a deficient number, since it is larger than the sum of its proper divisors (1).

122521552631 is an equidigital number, since it uses as much as digits as its factorization.

122521552631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36000, while the sum is 35.

Adding to 122521552631 its reverse (136255125221), we get a palindrome (258776677852).

The spelling of 122521552631 in words is "one hundred twenty-two billion, five hundred twenty-one million, five hundred fifty-two thousand, six hundred thirty-one".