12232021120 has 128 divisors (see below), whose sum is σ = 32218274880. Its totient is φ = 4403712000.

The previous prime is 12232021097. The next prime is 12232021127. The reversal of 12232021120 is 2112023221.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 12232021094 and 12232021103.

It is not an unprimeable number, because it can be changed into a prime (12232021127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 702439 + ... + 719641.

Almost surely, 2^12232021120 is an apocalyptic number.

12232021120 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 12232021120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16109137440).

12232021120 is an abundant number, since it is smaller than the sum of its proper divisors (19986253760).

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

12232021120 is a wasteful number, since it uses less digits than its factorization.

12232021120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17334 (or 17322 counting only the distinct ones).

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

Adding to 12232021120 its reverse (2112023221), we get a palindrome (14344044341).

The spelling of 12232021120 in words is "twelve billion, two hundred thirty-two million, twenty-one thousand, one hundred twenty".