13221319672 has 32 divisors (see below), whose sum is σ = 27111121200. Its totient is φ = 5994688000.

The previous prime is 13221319669. The next prime is 13221319687. The reversal of 13221319672 is 27691312231.

It is a super-3 number, since 3×13221319672³ (a number of 31 digits) contains 333 as substring.

It is a congruent 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, 152047 + ... + 222622.

Almost surely, 2^13221319672 is an apocalyptic number.

It is an amenable number.

13221319672 is an abundant number, since it is smaller than the sum of its proper divisors (13889801528).

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

13221319672 is a wasteful number, since it uses less digits than its factorization.

13221319672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375087 (or 375083 counting only the distinct ones).

The product of its digits is 27216, while the sum is 37.

The spelling of 13221319672 in words is "thirteen billion, two hundred twenty-one million, three hundred nineteen thousand, six hundred seventy-two".