12421174236 has 48 divisors (see below), whose sum is σ = 31119863040. Its totient is φ = 3841949440.

The previous prime is 12421174217. The next prime is 12421174267. The reversal of 12421174236 is 63247112421.

12421174236 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12421174197 and 12421174206.

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 15 ways as a sum of consecutive naturals, for example, 414306 + ... + 443273.

It is an arithmetic number, because the mean of its divisors is an integer number (648330480).

Almost surely, 2^12421174236 is an apocalyptic number.

It is an amenable number.

12421174236 is an abundant number, since it is smaller than the sum of its proper divisors (18698688804).

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

12421174236 is a wasteful number, since it uses less digits than its factorization.

12421174236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857674 (or 857672 counting only the distinct ones).

The product of its digits is 16128, while the sum is 33.

Adding to 12421174236 its reverse (63247112421), we get a palindrome (75668286657).

The spelling of 12421174236 in words is "twelve billion, four hundred twenty-one million, one hundred seventy-four thousand, two hundred thirty-six".