11222112122 has 16 divisors (see below), whose sum is σ = 18182808672. Its totient is φ = 5163784560.

The previous prime is 11222112071. The next prime is 11222112157. The reversal of 11222112122 is 22121122211.

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

It is a self number, because there is not a number n which added to its sum of digits gives 11222112122.

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, 643388 + ... + 660599.

It is an arithmetic number, because the mean of its divisors is an integer number (1136425542).

Almost surely, 2^11222112122 is an apocalyptic number.

11222112122 is a deficient number, since it is larger than the sum of its proper divisors (6960696550).

11222112122 is a wasteful number, since it uses less digits than its factorization.

11222112122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1304333.

The product of its digits is 64, while the sum is 17.

Adding to 11222112122 its reverse (22121122211), we get a palindrome (33343234333).

The spelling of 11222112122 in words is "eleven billion, two hundred twenty-two million, one hundred twelve thousand, one hundred twenty-two".