13321302102221 has 8 divisors (see below), whose sum is σ = 14105184682680. Its totient is φ = 12537450252288.

The previous prime is 13321302102203. The next prime is 13321302102223. The reversal of 13321302102221 is 12220120312331.

It can be written as a sum of positive squares in 4 ways, for example, as 2575270705225 + 10746031396996 = 1604765^2 + 3278114^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13321302102221 - 2³⁴ = 13304122233037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13321302102223) 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, 6787166 + ... + 8526911.

It is an arithmetic number, because the mean of its divisors is an integer number (1763148085335).

Almost surely, 2^{13321302102221} is an apocalyptic number.

It is an amenable number.

13321302102221 is a deficient number, since it is larger than the sum of its proper divisors (783882580459).

13321302102221 is a wasteful number, since it uses less digits than its factorization.

13321302102221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15365263.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 13321302102221 its reverse (12220120312331), we get a palindrome (25541422414552).

The spelling of 13321302102221 in words is "thirteen trillion, three hundred twenty-one billion, three hundred two million, one hundred two thousand, two hundred twenty-one".