22200212 has 24 divisors (see below), whose sum is σ = 39975936. Its totient is φ = 10781568.

The previous prime is 22200179. The next prime is 22200263. The reversal of 22200212 is 21200222.

It is a junction number, because it is equal to n+sod(n) for n = 22200193 and 22200202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57773 + ... + 58155.

It is an arithmetic number, because the mean of its divisors is an integer number (1665664).

Almost surely, 2^22200212 is an apocalyptic number.

It is an amenable number.

22200212 is a deficient number, since it is larger than the sum of its proper divisors (17775724).

22200212 is a wasteful number, since it uses less digits than its factorization.

22200212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 767 (or 765 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 22200212 is about 4711.7100929493. The cubic root of 22200212 is about 281.0513704033.

Adding to 22200212 its reverse (21200222), we get a palindrome (43400434).

The spelling of 22200212 in words is "twenty-two million, two hundred thousand, two hundred twelve".