122556053651 has 4 divisors (see below), whose sum is σ = 122580198192. Its totient is φ = 122531909112.

The previous prime is 122556053579. The next prime is 122556053743. The reversal of 122556053651 is 156350655221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 122556053651 - 2³⁰ = 121482311827 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122556053599 and 122556053608.

It is not an unprimeable number, because it can be changed into a prime (122556053051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12064655 + ... + 12074808.

It is an arithmetic number, because the mean of its divisors is an integer number (30645049548).

Almost surely, 2^122556053651 is an apocalyptic number.

122556053651 is a deficient number, since it is larger than the sum of its proper divisors (24144541).

122556053651 is an equidigital number, since it uses as much as digits as its factorization.

122556053651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24144540.

The product of its (nonzero) digits is 270000, while the sum is 41.

The spelling of 122556053651 in words is "one hundred twenty-two billion, five hundred fifty-six million, fifty-three thousand, six hundred fifty-one".