13221108837 has 24 divisors (see below), whose sum is σ = 19987775808. Its totient is φ = 8405337600.

The previous prime is 13221108809. The next prime is 13221108841. The reversal of 13221108837 is 73880112231.

It is not a de Polignac number, because 13221108837 - 2⁶ = 13221108773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13221108137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27964 + ... + 164997.

It is an arithmetic number, because the mean of its divisors is an integer number (832823992).

Almost surely, 2^13221108837 is an apocalyptic number.

It is an amenable number.

13221108837 is a deficient number, since it is larger than the sum of its proper divisors (6766666971).

13221108837 is a wasteful number, since it uses less digits than its factorization.

13221108837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193321 (or 193318 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The spelling of 13221108837 in words is "thirteen billion, two hundred twenty-one million, one hundred eight thousand, eight hundred thirty-seven".