22201868 has 18 divisors (see below), whose sum is σ = 42073164. Its totient is φ = 10246704.

The previous prime is 22201867. The next prime is 22201891. The reversal of 22201868 is 86810222.

It is a self number, because there is not a number n which added to its sum of digits gives 22201868.

It is not an unprimeable number, because it can be changed into a prime (22201867) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15746 + ... + 17097.

It is an arithmetic number, because the mean of its divisors is an integer number (2337398).

Almost surely, 2^22201868 is an apocalyptic number.

It is an amenable number.

22201868 is a deficient number, since it is larger than the sum of its proper divisors (19871296).

22201868 is a wasteful number, since it uses less digits than its factorization.

22201868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32873 (or 32858 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 22201868 is about 4711.8858220462. The cubic root of 22201868 is about 281.0583584672.

The spelling of 22201868 in words is "twenty-two million, two hundred one thousand, eight hundred sixty-eight".