122005421020 has 48 divisors (see below), whose sum is σ = 293169074688. Its totient is φ = 41779563840.

The previous prime is 122005420997. The next prime is 122005421051. The reversal of 122005421020 is 20124500221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 414226 + ... + 644665.

It is an arithmetic number, because the mean of its divisors is an integer number (6107689056).

Almost surely, 2^122005421020 is an apocalyptic number.

122005421020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122005421020 is an abundant number, since it is smaller than the sum of its proper divisors (171163653668).

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

122005421020 is a wasteful number, since it uses less digits than its factorization.

122005421020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1059730 (or 1059728 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

Adding to 122005421020 its reverse (20124500221), we get a palindrome (142129921241).

The spelling of 122005421020 in words is "one hundred twenty-two billion, five million, four hundred twenty-one thousand, twenty".