111222122132013 has 4 divisors (see below), whose sum is σ = 148296162842688. Its totient is φ = 74148081421340.

The previous prime is 111222122131999. The next prime is 111222122132047. The reversal of 111222122132013 is 310231221222111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 111222122132013 - 2⁴ = 111222122131997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111222122132113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18537020355333 + ... + 18537020355338.

It is an arithmetic number, because the mean of its divisors is an integer number (37074040710672).

Almost surely, 2^{111222122132013} is an apocalyptic number.

It is an amenable number.

111222122132013 is a deficient number, since it is larger than the sum of its proper divisors (37074040710675).

111222122132013 is an equidigital number, since it uses as much as digits as its factorization.

111222122132013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37074040710674.

The product of its (nonzero) digits is 576, while the sum is 24.

Adding to 111222122132013 its reverse (310231221222111), we get a palindrome (421453343354124).

The spelling of 111222122132013 in words is "one hundred eleven trillion, two hundred twenty-two billion, one hundred twenty-two million, one hundred thirty-two thousand, thirteen".