122012120100 has 72 divisors (see below), whose sum is σ = 380177264320. Its totient is φ = 30033751680.

The previous prime is 122012120057. The next prime is 122012120117. The reversal of 122012120100 is 1021210221.

122012120100 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15638680 + ... + 15646479.

Almost surely, 2^122012120100 is an apocalyptic number.

122012120100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122012120100 is an abundant number, since it is smaller than the sum of its proper divisors (258165144220).

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

122012120100 is a wasteful number, since it uses less digits than its factorization.

122012120100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31285189 (or 31285182 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 122012120100 its reverse (1021210221), we get a palindrome (123033330321).

The spelling of 122012120100 in words is "one hundred twenty-two billion, twelve million, one hundred twenty thousand, one hundred".