12121201232 has 40 divisors (see below), whose sum is σ = 26989790400. Its totient is φ = 5165770752.

The previous prime is 12121201219. The next prime is 12121201247. The reversal of 12121201232 is 23210212121.

12121201232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12121201232.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 282257 + ... + 322352.

It is an arithmetic number, because the mean of its divisors is an integer number (674744760).

Almost surely, 2^12121201232 is an apocalyptic number.

It is an amenable number.

12121201232 is an abundant number, since it is smaller than the sum of its proper divisors (14868589168).

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

12121201232 is a wasteful number, since it uses less digits than its factorization.

12121201232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604803 (or 604797 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 12121201232 its reverse (23210212121), we get a palindrome (35331413353).

The spelling of 12121201232 in words is "twelve billion, one hundred twenty-one million, two hundred one thousand, two hundred thirty-two".