13221000331 has 16 divisors (see below), whose sum is σ = 16557262848. Its totient is φ = 10255867200.

The previous prime is 13221000307. The next prime is 13221000349. The reversal of 13221000331 is 13300012231.

It is a cyclic number.

It is not a de Polignac number, because 13221000331 - 2⁹ = 13220999819 is a prime.

It is a super-2 number, since 2×13221000331² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13221000131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 367810 + ... + 402151.

It is an arithmetic number, because the mean of its divisors is an integer number (1034828928).

Almost surely, 2^13221000331 is an apocalyptic number.

13221000331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13221000331 is a deficient number, since it is larger than the sum of its proper divisors (3336262517).

13221000331 is a wasteful number, since it uses less digits than its factorization.

13221000331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770202.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 13221000331 its reverse (13300012231), we get a palindrome (26521012562).

The spelling of 13221000331 in words is "thirteen billion, two hundred twenty-one million, three hundred thirty-one", and thus it is an aban number.