13221113211 has 12 divisors (see below), whose sum is σ = 19286245680. Its totient is φ = 8726806800.

The previous prime is 13221113201. The next prime is 13221113219. The reversal of 13221113211 is 11231112231.

13221113211 is a `hidden beast` number, since 132 + 211 + 1 + 321 + 1 = 666.

It is not a de Polignac number, because 13221113211 - 2⁵ = 13221113179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13221113219) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7271431 + ... + 7273248.

It is an arithmetic number, because the mean of its divisors is an integer number (1607187140).

Almost surely, 2^13221113211 is an apocalyptic number.

13221113211 is a deficient number, since it is larger than the sum of its proper divisors (6065132469).

13221113211 is a wasteful number, since it uses less digits than its factorization.

13221113211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14544786 (or 14544783 counting only the distinct ones).

The product of its digits is 72, while the sum is 18.

Adding to 13221113211 its reverse (11231112231), we get a palindrome (24452225442).

The spelling of 13221113211 in words is "thirteen billion, two hundred twenty-one million, one hundred thirteen thousand, two hundred eleven".