22100200 has 24 divisors (see below), whose sum is σ = 51383430. Its totient is φ = 8840000.

The previous prime is 22100191. The next prime is 22100203. The reversal of 22100200 is 200122.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 19660356 + 2439844 = 4434^2 + 1562^2 .

It is not an unprimeable number, because it can be changed into a prime (22100203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55051 + ... + 55450.

Almost surely, 2^22100200 is an apocalyptic number.

22100200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22100200 is an abundant number, since it is smaller than the sum of its proper divisors (29283230).

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

22100200 is a wasteful number, since it uses less digits than its factorization.

22100200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110517 (or 110508 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 7.

The square root of 22100200 is about 4701.0849811506. The cubic root of 22100200 is about 280.6286893760.

Adding to 22100200 its reverse (200122), we get a palindrome (22300322).

The spelling of 22100200 in words is "twenty-two million, one hundred thousand, two hundred".