12122032120 has 128 divisors (see below), whose sum is σ = 30786194880. Its totient is φ = 4257280000.

The previous prime is 12122032051. The next prime is 12122032127. The reversal of 12122032120 is 2123022121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12122032094 and 12122032103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122032127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1818714 + ... + 1825366.

Almost surely, 2^12122032120 is an apocalyptic number.

12122032120 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 12122032120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15393097440).

12122032120 is an abundant number, since it is smaller than the sum of its proper divisors (18664162760).

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

12122032120 is a wasteful number, since it uses less digits than its factorization.

12122032120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6817 (or 6813 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 12122032120 its reverse (2123022121), we get a palindrome (14245054241).

Subtracting from 12122032120 its reverse (2123022121), we obtain a palindrome (9999009999).

The spelling of 12122032120 in words is "twelve billion, one hundred twenty-two million, thirty-two thousand, one hundred twenty".