120012102120 has 128 divisors (see below), whose sum is σ = 364955984640. Its totient is φ = 31568363520.

The previous prime is 120012102101. The next prime is 120012102131. The reversal of 120012102120 is 21201210021.

It is a super-2 number, since 2×120012102120² (a number of 23 digits) contains 22 as substring.

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 = 120012102096 and 120012102105.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3157630 + ... + 3195410.

It is an arithmetic number, because the mean of its divisors is an integer number (2851218630).

Almost surely, 2^120012102120 is an apocalyptic number.

120012102120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120012102120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182477992320).

120012102120 is an abundant number, since it is smaller than the sum of its proper divisors (244943882520).

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

120012102120 is a wasteful number, since it uses less digits than its factorization.

120012102120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38155 (or 38151 counting only the distinct ones).

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

Adding to 120012102120 its reverse (21201210021), we get a palindrome (141213312141).

The spelling of 120012102120 in words is "one hundred twenty billion, twelve million, one hundred two thousand, one hundred twenty".