22112122222 has 8 divisors (see below), whose sum is σ = 33266606256. Its totient is φ = 11023253472.

The previous prime is 22112122181. The next prime is 22112122229. The reversal of 22112122222 is 22222121122.

It is a sphenic number, since it is the product of 3 distinct primes.

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 22112122222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22112122229) 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, 16402978 + ... + 16404325.

It is an arithmetic number, because the mean of its divisors is an integer number (4158325782).

Almost surely, 2^22112122222 is an apocalyptic number.

22112122222 is a deficient number, since it is larger than the sum of its proper divisors (11154484034).

22112122222 is a wasteful number, since it uses less digits than its factorization.

22112122222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32807642.

The product of its digits is 256, while the sum is 19.

Adding to 22112122222 its reverse (22222121122), we get a palindrome (44334243344).

The spelling of 22112122222 in words is "twenty-two billion, one hundred twelve million, one hundred twenty-two thousand, two hundred twenty-two".