13221319671 has 48 divisors (see below), whose sum is σ = 22101678144. Its totient is φ = 7460093952.

The previous prime is 13221319669. The next prime is 13221319687. The reversal of 13221319671 is 17691312231.

It is not a de Polignac number, because 13221319671 - 2¹ = 13221319669 is a prime.

It is a super-3 number, since 3×13221319671³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13221319571) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1661815 + ... + 1669751.

It is an arithmetic number, because the mean of its divisors is an integer number (460451628).

Almost surely, 2^13221319671 is an apocalyptic number.

13221319671 is a deficient number, since it is larger than the sum of its proper divisors (8880358473).

13221319671 is a wasteful number, since it uses less digits than its factorization.

13221319671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8280 (or 8277 counting only the distinct ones).

The product of its digits is 13608, while the sum is 36.

The spelling of 13221319671 in words is "thirteen billion, two hundred twenty-one million, three hundred nineteen thousand, six hundred seventy-one".