22112222222 has 8 divisors (see below), whose sum is σ = 33429501696. Its totient is φ = 10969054992.

The previous prime is 22112222219. The next prime is 22112222291. The reversal of 22112222222 is 22222221122.

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

It is a super-2 number, since 2×22112222222² (a number of 21 digits) contains 22 as substring.

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

22112222222 is a modest number, since divided by 222222 gives 22112 as remainder.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 22112222194 and 22112222203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43527743 + ... + 43528250.

It is an arithmetic number, because the mean of its divisors is an integer number (4178687712).

Almost surely, 2^22112222222 is an apocalyptic number.

22112222222 is a deficient number, since it is larger than the sum of its proper divisors (11317279474).

22112222222 is a wasteful number, since it uses less digits than its factorization.

22112222222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87056122.

The product of its digits is 512, while the sum is 20.

Adding to 22112222222 its reverse (22222221122), we get a palindrome (44334443344).

The spelling of 22112222222 in words is "twenty-two billion, one hundred twelve million, two hundred twenty-two thousand, two hundred twenty-two".