11222111222013 has 4 divisors (see below), whose sum is σ = 14962814962688. Its totient is φ = 7481407481340.

The previous prime is 11222111221961. The next prime is 11222111222057. The reversal of 11222111222013 is 31022211122211.

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 not a de Polignac number, because 11222111222013 - 2¹⁴ = 11222111205629 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 (11222111222713) 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, 1870351870333 + ... + 1870351870338.

It is an arithmetic number, because the mean of its divisors is an integer number (3740703740672).

Almost surely, 2^{11222111222013} is an apocalyptic number.

It is an amenable number.

11222111222013 is a deficient number, since it is larger than the sum of its proper divisors (3740703740675).

11222111222013 is an equidigital number, since it uses as much as digits as its factorization.

11222111222013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3740703740674.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 11222111222013 its reverse (31022211122211), we get a palindrome (42244322344224).

The spelling of 11222111222013 in words is "eleven trillion, two hundred twenty-two billion, one hundred eleven million, two hundred twenty-two thousand, thirteen".