22022200 has 48 divisors (see below), whose sum is σ = 51615000. Its totient is φ = 8737920.

The previous prime is 22022167. The next prime is 22022213. The reversal of 22022200 is 222022.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29431 + ... + 30169.

Almost surely, 2^22022200 is an apocalyptic number.

22022200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22022200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25807500).

22022200 is an abundant number, since it is smaller than the sum of its proper divisors (29592800).

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

22022200 is a wasteful number, since it uses less digits than its factorization.

22022200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 904 (or 895 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 10.

The square root of 22022200 is about 4692.7816910655. The cubic root of 22022200 is about 280.2981517947.

Adding to 22022200 its reverse (222022), we get a palindrome (22244222).

It can be divided in two parts, 22022 and 200, that added together give a palindrome (22222).

The spelling of 22022200 in words is "twenty-two million, twenty-two thousand, two hundred".