122133331621 has 8 divisors (see below), whose sum is σ = 144083561984. Its totient is φ = 101308754160.

The previous prime is 122133331613. The next prime is 122133331667. The reversal of 122133331621 is 126133331221.

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 122133331621 - 2³ = 122133331613 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122133331621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122133332621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 281412990 + ... + 281413423.

It is an arithmetic number, because the mean of its divisors is an integer number (18010445248).

Almost surely, 2^122133331621 is an apocalyptic number.

It is an amenable number.

122133331621 is a deficient number, since it is larger than the sum of its proper divisors (21950230363).

122133331621 is an equidigital number, since it uses as much as digits as its factorization.

122133331621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562826451.

The product of its digits is 3888, while the sum is 28.

Adding to 122133331621 its reverse (126133331221), we get a palindrome (248266662842).

The spelling of 122133331621 in words is "one hundred twenty-two billion, one hundred thirty-three million, three hundred thirty-one thousand, six hundred twenty-one".