13221111110 has 16 divisors (see below), whose sum is σ = 23940506016. Its totient is φ = 5256776448.

The previous prime is 13221111097. The next prime is 13221111119. The reversal of 13221111110 is 1111112231.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13221111119) 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, 3956747 + ... + 3960086.

It is an arithmetic number, because the mean of its divisors is an integer number (1496281626).

Almost surely, 2^13221111110 is an apocalyptic number.

13221111110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13221111110 is a deficient number, since it is larger than the sum of its proper divisors (10719394906).

13221111110 is a wasteful number, since it uses less digits than its factorization.

13221111110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7917007.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 13221111110 its reverse (1111112231), we get a palindrome (14332223341).

The spelling of 13221111110 in words is "thirteen billion, two hundred twenty-one million, one hundred eleven thousand, one hundred ten".