13221023113112 has 96 divisors (see below), whose sum is σ = 26508573112320. Its totient is φ = 6175115399040.

The previous prime is 13221023113093. The next prime is 13221023113121. The reversal of 13221023113112 is 21131132012231.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1511487923 + ... + 1511496669.

It is an arithmetic number, because the mean of its divisors is an integer number (276130969920).

Almost surely, 2^{13221023113112} is an apocalyptic number.

It is an amenable number.

13221023113112 is an abundant number, since it is smaller than the sum of its proper divisors (13287549999208).

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

13221023113112 is a wasteful number, since it uses less digits than its factorization.

13221023113112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16089 (or 16056 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 13221023113112 its reverse (21131132012231), we get a palindrome (34352155125343).

The spelling of 13221023113112 in words is "thirteen trillion, two hundred twenty-one billion, twenty-three million, one hundred thirteen thousand, one hundred twelve".