13221011310 has 64 divisors (see below), whose sum is σ = 35094814272. Its totient is φ = 3166442496.

The previous prime is 13221011269. The next prime is 13221011339. The reversal of 13221011310 is 1311012231.

It is a happy number.

It is a super-2 number, since 2×13221011310² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 13221011310.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 443679 + ... + 472538.

It is an arithmetic number, because the mean of its divisors is an integer number (548356473).

Almost surely, 2^13221011310 is an apocalyptic number.

13221011310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13221011310 is an abundant number, since it is smaller than the sum of its proper divisors (21873802962).

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

13221011310 is a wasteful number, since it uses less digits than its factorization.

13221011310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916277.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 13221011310 its reverse (1311012231), we get a palindrome (14532023541).

The spelling of 13221011310 in words is "thirteen billion, two hundred twenty-one million, eleven thousand, three hundred ten".