12203232120 has 128 divisors (see below), whose sum is σ = 40787841600. Its totient is φ = 3245363712.

The previous prime is 12203232109. The next prime is 12203232127. The reversal of 12203232120 is 2123230221.

12203232120 is a `hidden beast` number, since 1 + 220 + 323 + 2 + 120 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12203232093 and 12203232102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12203232127) 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, 387694 + ... + 417986.

Almost surely, 2^12203232120 is an apocalyptic number.

12203232120 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 12203232120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20393920800).

12203232120 is an abundant number, since it is smaller than the sum of its proper divisors (28584609480).

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

12203232120 is a wasteful number, since it uses less digits than its factorization.

12203232120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30686 (or 30676 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 12203232120 its reverse (2123230221), we get a palindrome (14326462341).

The spelling of 12203232120 in words is "twelve billion, two hundred three million, two hundred thirty-two thousand, one hundred twenty".