122001220120 has 64 divisors (see below), whose sum is σ = 313007677920. Its totient is φ = 42396801024.

The previous prime is 122001220057. The next prime is 122001220139. The reversal of 122001220120 is 21022100221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a self number, because there is not a number n which added to its sum of digits gives 122001220120.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 6891682 + ... + 6909361.

Almost surely, 2^122001220120 is an apocalyptic number.

122001220120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122001220120 is an abundant number, since it is smaller than the sum of its proper divisors (191006457800).

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

122001220120 is a wasteful number, since it uses less digits than its factorization.

122001220120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13801084 (or 13801080 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 122001220120 its reverse (21022100221), we get a palindrome (143023320341).

The spelling of 122001220120 in words is "one hundred twenty-two billion, one million, two hundred twenty thousand, one hundred twenty".