122621435855 has 8 divisors (see below), whose sum is σ = 147148892352. Its totient is φ = 98095035808.

The previous prime is 122621435821. The next prime is 122621435873. The reversal of 122621435855 is 558534126221.

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 122621435855 - 2⁶ = 122621435791 is a prime.

It is a super-2 number, since 2×122621435855² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18794 + ... + 495576.

It is an arithmetic number, because the mean of its divisors is an integer number (18393611544).

Almost surely, 2^122621435855 is an apocalyptic number.

122621435855 is a deficient number, since it is larger than the sum of its proper divisors (24527456497).

122621435855 is an equidigital number, since it uses as much as digits as its factorization.

122621435855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528225.

The product of its digits is 576000, while the sum is 44.

The spelling of 122621435855 in words is "one hundred twenty-two billion, six hundred twenty-one million, four hundred thirty-five thousand, eight hundred fifty-five".