122557424261 has 8 divisors (see below), whose sum is σ = 124802458560. Its totient is φ = 120317983072.

The previous prime is 122557424239. The next prime is 122557424263. The reversal of 122557424261 is 162424755221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122557424261 - 2²⁶ = 122490315397 is a prime.

It is a super-2 number, since 2×122557424261² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122557424263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1354040 + ... + 1441713.

It is an arithmetic number, because the mean of its divisors is an integer number (15600307320).

Almost surely, 2^122557424261 is an apocalyptic number.

It is an amenable number.

122557424261 is a deficient number, since it is larger than the sum of its proper divisors (2245034299).

122557424261 is an equidigital number, since it uses as much as digits as its factorization.

122557424261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2796555.

The product of its digits is 268800, while the sum is 41.

The spelling of 122557424261 in words is "one hundred twenty-two billion, five hundred fifty-seven million, four hundred twenty-four thousand, two hundred sixty-one".