11222122113 has 6 divisors (see below), whose sum is σ = 16209731954. Its totient is φ = 7481414736.

The previous prime is 11222122111. The next prime is 11222122117. The reversal of 11222122113 is 31122122211.

It can be written as a sum of positive squares in only one way, i.e., 8062782849 + 3159339264 = 89793^2 + 56208^2 .

It is not a de Polignac number, because 11222122113 - 2¹ = 11222122111 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11222122111) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 623451220 + ... + 623451237.

Almost surely, 2^11222122113 is an apocalyptic number.

It is an amenable number.

11222122113 is a deficient number, since it is larger than the sum of its proper divisors (4987609841).

11222122113 is a wasteful number, since it uses less digits than its factorization.

11222122113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1246902463 (or 1246902460 counting only the distinct ones).

The product of its digits is 96, while the sum is 18.

Adding to 11222122113 its reverse (31122122211), we get a palindrome (42344244324).

The spelling of 11222122113 in words is "eleven billion, two hundred twenty-two million, one hundred twenty-two thousand, one hundred thirteen".