13216844228 has 24 divisors (see below), whose sum is σ = 26690332032. Its totient is φ = 5609366784.

The previous prime is 13216844219. The next prime is 13216844257. The reversal of 13216844228 is 82244861231.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2288525 + ... + 2294292.

It is an arithmetic number, because the mean of its divisors is an integer number (1112097168).

Almost surely, 2^13216844228 is an apocalyptic number.

It is an amenable number.

13216844228 is an abundant number, since it is smaller than the sum of its proper divisors (13473487804).

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

13216844228 is a wasteful number, since it uses less digits than its factorization.

13216844228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4582931 (or 4582929 counting only the distinct ones).

The product of its digits is 147456, while the sum is 41.

The spelling of 13216844228 in words is "thirteen billion, two hundred sixteen million, eight hundred forty-four thousand, two hundred twenty-eight".