11121112222 has 16 divisors (see below), whose sum is σ = 18378367344. Its totient is φ = 5005000000.

The previous prime is 11121112157. The next prime is 11121112253. The reversal of 11121112222 is 22221112111.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 11121112196 and 11121112205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2500279 + ... + 2504722.

It is an arithmetic number, because the mean of its divisors is an integer number (1148647959).

Almost surely, 2^11121112222 is an apocalyptic number.

11121112222 is a deficient number, since it is larger than the sum of its proper divisors (7257255122).

11121112222 is a wasteful number, since it uses less digits than its factorization.

11121112222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5005115.

The product of its digits is 32, while the sum is 16.

Adding to 11121112222 its reverse (22221112111), we get a palindrome (33342224333).

The spelling of 11121112222 in words is "eleven billion, one hundred twenty-one million, one hundred twelve thousand, two hundred twenty-two".