122020331356 has 36 divisors (see below), whose sum is σ = 270980221176. Its totient is φ = 47540388000.

The previous prime is 122020331353. The next prime is 122020331371. The reversal of 122020331356 is 653133020221.

It is a super-2 number, since 2×122020331356² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122020331353) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 28295695 + ... + 28300006.

It is an arithmetic number, because the mean of its divisors is an integer number (7527228366).

Almost surely, 2^122020331356 is an apocalyptic number.

It is an amenable number.

122020331356 is an abundant number, since it is smaller than the sum of its proper divisors (148959889820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122020331356 is a wasteful number, since it uses less digits than its factorization.

122020331356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56595730 (or 56595721 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 28.

Adding to 122020331356 its reverse (653133020221), we get a palindrome (775153351577).

The spelling of 122020331356 in words is "one hundred twenty-two billion, twenty million, three hundred thirty-one thousand, three hundred fifty-six".