12365216443112 has 128 divisors (see below), whose sum is σ = 25652132352000. Its totient is φ = 5552876609280.

The previous prime is 12365216443109. The next prime is 12365216443163. The reversal of 12365216443112 is 21134461256321.

It is a self number, because there is not a number n which added to its sum of digits gives 12365216443112.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1938422339 + ... + 1938428717.

It is an arithmetic number, because the mean of its divisors is an integer number (200407284000).

Almost surely, 2^{12365216443112} 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 12365216443112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12826066176000).

12365216443112 is an abundant number, since it is smaller than the sum of its proper divisors (13286915908888).

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

12365216443112 is a wasteful number, since it uses less digits than its factorization.

12365216443112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9871 (or 9867 counting only the distinct ones).

The product of its digits is 207360, while the sum is 41.

Adding to 12365216443112 its reverse (21134461256321), we get a palindrome (33499677699433).

The spelling of 12365216443112 in words is "twelve trillion, three hundred sixty-five billion, two hundred sixteen million, four hundred forty-three thousand, one hundred twelve".