12120032120 has 32 divisors (see below), whose sum is σ = 31165797600. Its totient is φ = 4155439488.

The previous prime is 12120032117. The next prime is 12120032161. The reversal of 12120032120 is 2123002121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 12120032095 and 12120032104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21642635 + ... + 21643194.

It is an arithmetic number, because the mean of its divisors is an integer number (973931175).

Almost surely, 2^12120032120 is an apocalyptic number.

12120032120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12120032120 is an abundant number, since it is smaller than the sum of its proper divisors (19045765480).

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

12120032120 is a wasteful number, since it uses less digits than its factorization.

12120032120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43285847 (or 43285843 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 12120032120 its reverse (2123002121), we get a palindrome (14243034241).

The spelling of 12120032120 in words is "twelve billion, one hundred twenty million, thirty-two thousand, one hundred twenty".