13222816312 has 8 divisors (see below), whose sum is σ = 24792780600. Its totient is φ = 6611408152.

The previous prime is 13222816309. The next prime is 13222816331. The reversal of 13222816312 is 21361822231.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 826426012 + ... + 826426027.

It is an arithmetic number, because the mean of its divisors is an integer number (3099097575).

Almost surely, 2^13222816312 is an apocalyptic number.

It is an amenable number.

13222816312 is a deficient number, since it is larger than the sum of its proper divisors (11569964288).

13222816312 is a wasteful number, since it uses less digits than its factorization.

13222816312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1652852045 (or 1652852041 counting only the distinct ones).

The product of its digits is 6912, while the sum is 31.

The spelling of 13222816312 in words is "thirteen billion, two hundred twenty-two million, eight hundred sixteen thousand, three hundred twelve".