11112122223 has 6 divisors (see below), whose sum is σ = 16050843224. Its totient is φ = 7408081476.

The previous prime is 11112122213. The next prime is 11112122237. The reversal of 11112122223 is 32222121111.

It is not a de Polignac number, because 11112122223 - 2⁴ = 11112122207 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11112122196 and 11112122205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11112122213) 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, 617340115 + ... + 617340132.

Almost surely, 2^11112122223 is an apocalyptic number.

11112122223 is a deficient number, since it is larger than the sum of its proper divisors (4938721001).

11112122223 is a wasteful number, since it uses less digits than its factorization.

11112122223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1234680253 (or 1234680250 counting only the distinct ones).

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

Adding to 11112122223 its reverse (32222121111), we get a palindrome (43334243334).

The spelling of 11112122223 in words is "eleven billion, one hundred twelve million, one hundred twenty-two thousand, two hundred twenty-three".