13221313444902 has 16 divisors (see below), whose sum is σ = 26474834727792. Its totient is φ = 4401736508640.

The previous prime is 13221313444877. The next prime is 13221313444903. The reversal of 13221313444902 is 20944431312231.

It is a super-3 number, since 3×13221313444902³ (a number of 40 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13221313444903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1341987913 + ... + 1341997764.

It is an arithmetic number, because the mean of its divisors is an integer number (1654677170487).

Almost surely, 2^{13221313444902} is an apocalyptic number.

13221313444902 is an abundant number, since it is smaller than the sum of its proper divisors (13253521282890).

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

13221313444902 is a wasteful number, since it uses less digits than its factorization.

13221313444902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2683986503.

The product of its (nonzero) digits is 124416, while the sum is 39.

The spelling of 13221313444902 in words is "thirteen trillion, two hundred twenty-one billion, three hundred thirteen million, four hundred forty-four thousand, nine hundred two".