22111868 has 6 divisors (see below), whose sum is σ = 38695776. Its totient is φ = 11055932.

The previous prime is 22111867. The next prime is 22111889. The reversal of 22111868 is 86811122.

It is a self number, because there is not a number n which added to its sum of digits gives 22111868.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22111867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2763980 + ... + 2763987.

It is an arithmetic number, because the mean of its divisors is an integer number (6449296).

Almost surely, 2^22111868 is an apocalyptic number.

It is an amenable number.

22111868 is a deficient number, since it is larger than the sum of its proper divisors (16583908).

22111868 is a wasteful number, since it uses less digits than its factorization.

22111868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5527971 (or 5527969 counting only the distinct ones).

The product of its digits is 1536, while the sum is 29.

The square root of 22111868 is about 4702.3258075127. The cubic root of 22111868 is about 280.6780675034.

The spelling of 22111868 in words is "twenty-two million, one hundred eleven thousand, eight hundred sixty-eight".