13221111310 has 96 divisors (see below), whose sum is σ = 28531401120. Its totient is φ = 4368537600.

The previous prime is 13221111271. The next prime is 13221111313. The reversal of 13221111310 is 1311112231.

It is a happy number.

It is a super-2 number, since 2×13221111310² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13221111313) 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, 914740 + ... + 929080.

It is an arithmetic number, because the mean of its divisors is an integer number (297202095).

Almost surely, 2^13221111310 is an apocalyptic number.

13221111310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13221111310 is an abundant number, since it is smaller than the sum of its proper divisors (15310289810).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13221111310 is a wasteful number, since it uses less digits than its factorization.

13221111310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14422 (or 14405 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 13221111310 its reverse (1311112231), we get a palindrome (14532223541).

The spelling of 13221111310 in words is "thirteen billion, two hundred twenty-one million, one hundred eleven thousand, three hundred ten".