12232125420 has 96 divisors (see below), whose sum is σ = 35953763328. Its totient is φ = 3101336832.

The previous prime is 12232125391. The next prime is 12232125427. The reversal of 12232125420 is 2452123221.

It is a super-2 number, since 2×12232125420² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12232125427) 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, 203922 + ... + 256998.

It is an arithmetic number, because the mean of its divisors is an integer number (374518368).

Almost surely, 2^12232125420 is an apocalyptic number.

12232125420 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 12232125420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17976881664).

12232125420 is an abundant number, since it is smaller than the sum of its proper divisors (23721637908).

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

12232125420 is a wasteful number, since it uses less digits than its factorization.

12232125420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53279 (or 53277 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 12232125420 its reverse (2452123221), we get a palindrome (14684248641).

It can be divided in two parts, 122321 and 25420, that added together give a palindrome (147741).

The spelling of 12232125420 in words is "twelve billion, two hundred thirty-two million, one hundred twenty-five thousand, four hundred twenty".