12012113121232 has 80 divisors (see below), whose sum is σ = 27056396851200. Its totient is φ = 5059422276480.

The previous prime is 12012113121221. The next prime is 12012113121269. The reversal of 12012113121232 is 23212131121021.

It is a happy number.

It is a super-2 number, since 2×12012113121232² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24330757 + ... + 24819547.

It is an arithmetic number, because the mean of its divisors is an integer number (338204960640).

Almost surely, 2^{12012113121232} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12012113121232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13528198425600).

12012113121232 is an abundant number, since it is smaller than the sum of its proper divisors (15044283729968).

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

12012113121232 is a wasteful number, since it uses less digits than its factorization.

12012113121232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492584 (or 492578 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 12012113121232 its reverse (23212131121021), we get a palindrome (35224244242253).

The spelling of 12012113121232 in words is "twelve trillion, twelve billion, one hundred thirteen million, one hundred twenty-one thousand, two hundred thirty-two".