22112220111 has 8 divisors (see below), whose sum is σ = 30168610560. Its totient is φ = 14398654872.

The previous prime is 22112220107. The next prime is 22112220133. The reversal of 22112220111 is 11102221122.

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

It is not a de Polignac number, because 22112220111 - 2² = 22112220107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22112270111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85706151 + ... + 85706408.

It is an arithmetic number, because the mean of its divisors is an integer number (3771076320).

Almost surely, 2^22112220111 is an apocalyptic number.

22112220111 is a deficient number, since it is larger than the sum of its proper divisors (8056390449).

22112220111 is a wasteful number, since it uses less digits than its factorization.

22112220111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171412605.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 22112220111 its reverse (11102221122), we get a palindrome (33214441233).

The spelling of 22112220111 in words is "twenty-two billion, one hundred twelve million, two hundred twenty thousand, one hundred eleven".