22111122110 has 48 divisors (see below), whose sum is σ = 50506902000. Its totient is φ = 6891776640.

The previous prime is 22111122109. The next prime is 22111122113. The reversal of 22111122110 is 1122111122.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22111122113) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2045735 + ... + 2056514.

It is an arithmetic number, because the mean of its divisors is an integer number (1052227125).

Almost surely, 2^22111122110 is an apocalyptic number.

22111122110 is an abundant number, since it is smaller than the sum of its proper divisors (28395779890).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22111122110 is a wasteful number, since it uses less digits than its factorization.

22111122110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4102281 (or 4102274 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 22111122110 its reverse (1122111122), we get a palindrome (23233233232).

The spelling of 22111122110 in words is "twenty-two billion, one hundred eleven million, one hundred twenty-two thousand, one hundred ten".