120001100120 has 64 divisors (see below), whose sum is σ = 294598663200. Its totient is φ = 43629281280.

The previous prime is 120001100117. The next prime is 120001100171. The reversal of 120001100120 is 21001100021.

120001100120 is digitally balanced in base 3, 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 (8).

It is a junction number, because it is equal to n+sod(n) for n = 120001100098 and 120001100107.

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, 2984792 + ... + 3024728.

Almost surely, 2^120001100120 is an apocalyptic number.

120001100120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120001100120 is an abundant number, since it is smaller than the sum of its proper divisors (174597563080).

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

120001100120 is a wasteful number, since it uses less digits than its factorization.

120001100120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46788 (or 46784 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 120001100120 its reverse (21001100021), we get a palindrome (141002200141).

Subtracting from 120001100120 its reverse (21001100021), we obtain a palindrome (99000000099).

The spelling of 120001100120 in words is "one hundred twenty billion, one million, one hundred thousand, one hundred twenty".