12001113222013 has 8 divisors (see below), whose sum is σ = 12707373935160. Its totient is φ = 11294887272960.

The previous prime is 12001113221989. The next prime is 12001113222041. The reversal of 12001113222013 is 31022231110021.

It can be written as a sum of positive squares in 4 ways, for example, as 6057790942564 + 5943322279449 = 2461258^2 + 2437893^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12001113222013 - 2⁹ = 12001113221501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001113222083) 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, 7978608 + ... + 9362713.

It is an arithmetic number, because the mean of its divisors is an integer number (1588421741895).

Almost surely, 2^{12001113222013} is an apocalyptic number.

It is an amenable number.

12001113222013 is a deficient number, since it is larger than the sum of its proper divisors (706260713147).

12001113222013 is a wasteful number, since it uses less digits than its factorization.

12001113222013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17382047.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 12001113222013 its reverse (31022231110021), we get a palindrome (43023344332034).

The spelling of 12001113222013 in words is "twelve trillion, one billion, one hundred thirteen million, two hundred twenty-two thousand, thirteen".