122000100120 has 96 divisors (see below), whose sum is σ = 397751487120. Its totient is φ = 32430700800.

The previous prime is 122000100097. The next prime is 122000100121. The reversal of 122000100120 is 21001000221.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122000100121) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 420406 + ... + 648645.

Almost surely, 2^122000100120 is an apocalyptic number.

122000100120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122000100120 is an abundant number, since it is smaller than the sum of its proper divisors (275751387000).

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

122000100120 is a wasteful number, since it uses less digits than its factorization.

122000100120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1069385 (or 1069378 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 122000100120 its reverse (21001000221), we get a palindrome (143001100341).

The spelling of 122000100120 in words is "one hundred twenty-two billion, one hundred thousand, one hundred twenty".