13310333231221 has 8 divisors (see below), whose sum is σ = 14417061697080. Its totient is φ = 12215441433792.

The previous prime is 13310333231213. The next prime is 13310333231227. The reversal of 13310333231221 is 12213233301331.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6641001156196 + 6669332075025 = 2577014^2 + 2582505^2 .

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 13310333231221 - 2³ = 13310333231213 is a prime.

It is a super-2 number, since 2×13310333231221² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13310333231221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13310333231227) 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, 2959164766 + ... + 2959169263.

It is an arithmetic number, because the mean of its divisors is an integer number (1802132712135).

Almost surely, 2^{13310333231221} is an apocalyptic number.

It is an amenable number.

13310333231221 is a deficient number, since it is larger than the sum of its proper divisors (1106728465859).

13310333231221 is a wasteful number, since it uses less digits than its factorization.

13310333231221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5918334215.

The product of its (nonzero) digits is 5832, while the sum is 28.

Adding to 13310333231221 its reverse (12213233301331), we get a palindrome (25523566532552).

The spelling of 13310333231221 in words is "thirteen trillion, three hundred ten billion, three hundred thirty-three million, two hundred thirty-one thousand, two hundred twenty-one".