13221233021331 has 48 divisors (see below), whose sum is σ = 19325049569280. Its totient is φ = 8709507231360.

The previous prime is 13221233021323. The next prime is 13221233021357. The reversal of 13221233021331 is 13312033212231.

13221233021331 is a `hidden beast` number, since 1 + 3 + 2 + 2 + 1 + 23 + 302 + 1 + 331 = 666.

It is not a de Polignac number, because 13221233021331 - 2³ = 13221233021323 is a prime.

It is a super-2 number, since 2×13221233021331² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13221233021295 and 13221233021304.

It is not an unprimeable number, because it can be changed into a prime (13221233021371) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 614844526 + ... + 614866028.

It is an arithmetic number, because the mean of its divisors is an integer number (402605199360).

Almost surely, 2^{13221233021331} is an apocalyptic number.

13221233021331 is a deficient number, since it is larger than the sum of its proper divisors (6103816547949).

13221233021331 is a wasteful number, since it uses less digits than its factorization.

13221233021331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23216 (or 23213 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 13221233021331 its reverse (13312033212231), we get a palindrome (26533266233562).

The spelling of 13221233021331 in words is "thirteen trillion, two hundred twenty-one billion, two hundred thirty-three million, twenty-one thousand, three hundred thirty-one".