13221211310 has 32 divisors (see below), whose sum is σ = 24152893632. Its totient is φ = 5210222080.

The previous prime is 13221211303. The next prime is 13221211337. The reversal of 13221211310 is 1311212231.

It is a super-2 number, since 2×13221211310² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153680 + ... + 223740.

It is an arithmetic number, because the mean of its divisors is an integer number (754777926).

Almost surely, 2^13221211310 is an apocalyptic number.

13221211310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13221211310 is a deficient number, since it is larger than the sum of its proper divisors (10931682322).

13221211310 is a wasteful number, since it uses less digits than its factorization.

13221211310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70348.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 13221211310 its reverse (1311212231), we get a palindrome (14532423541).

The spelling of 13221211310 in words is "thirteen billion, two hundred twenty-one million, two hundred eleven thousand, three hundred ten".