122100012120 has 32 divisors (see below), whose sum is σ = 366300036720. Its totient is φ = 32560003200.

The previous prime is 122100012103. The next prime is 122100012131. The reversal of 122100012120 is 21210001221.

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

It is a junction number, because it is equal to n+sod(n) for n = 122100012096 and 122100012105.

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 7 ways as a sum of consecutive naturals, for example, 508749931 + ... + 508750170.

Almost surely, 2^122100012120 is an apocalyptic number.

122100012120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122100012120 is an abundant number, since it is smaller than the sum of its proper divisors (244200024600).

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

122100012120 is a wasteful number, since it uses less digits than its factorization.

122100012120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017500115 (or 1017500111 counting only the distinct ones).

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

Adding to 122100012120 its reverse (21210001221), we get a palindrome (143310013341).

The spelling of 122100012120 in words is "one hundred twenty-two billion, one hundred million, twelve thousand, one hundred twenty".