13310322012221 has 8 divisors (see below), whose sum is σ = 14334346376280. Its totient is φ = 12286319568192.

The previous prime is 13310322012167. The next prime is 13310322012233. The reversal of 13310322012221 is 12221022301331.

It can be written as a sum of positive squares in 4 ways, for example, as 5647224679321 + 7663097332900 = 2376389^2 + 2768230^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 13310322012221 - 2²² = 13310317817917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13310322012271) 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, 4207910 + ... + 6657863.

It is an arithmetic number, because the mean of its divisors is an integer number (1791793297035).

Almost surely, 2^{13310322012221} is an apocalyptic number.

It is an amenable number.

13310322012221 is a deficient number, since it is larger than the sum of its proper divisors (1024024364059).

13310322012221 is a wasteful number, since it uses less digits than its factorization.

13310322012221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10960015.

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

Adding to 13310322012221 its reverse (12221022301331), we get a palindrome (25531344313552).

The spelling of 13310322012221 in words is "thirteen trillion, three hundred ten billion, three hundred twenty-two million, twelve thousand, two hundred twenty-one".