122612505539 has 2 divisors, whose sum is σ = 122612505540. Its totient is φ = 122612505538.

The previous prime is 122612505517. The next prime is 122612505563. The reversal of 122612505539 is 935505216221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122612505539 - 2¹² = 122612501443 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 122612505496 and 122612505505.

It is not a weakly prime, because it can be changed into another prime (122612505139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61306252769 + 61306252770.

It is an arithmetic number, because the mean of its divisors is an integer number (61306252770).

Almost surely, 2^122612505539 is an apocalyptic number.

122612505539 is a deficient number, since it is larger than the sum of its proper divisors (1).

122612505539 is an equidigital number, since it uses as much as digits as its factorization.

122612505539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162000, while the sum is 41.

The spelling of 122612505539 in words is "one hundred twenty-two billion, six hundred twelve million, five hundred five thousand, five hundred thirty-nine".