22022700 has 72 divisors (see below), whose sum is σ = 72828672. Its totient is φ = 5033280.

The previous prime is 22022681. The next prime is 22022717. The reversal of 22022700 is 722022.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 22022700.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3144 + ... + 7343.

Almost surely, 2^22022700 is an apocalyptic number.

22022700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22022700 is an abundant number, since it is smaller than the sum of its proper divisors (50805972).

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

22022700 is a wasteful number, since it uses less digits than its factorization.

22022700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10511 (or 10504 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 15.

The square root of 22022700 is about 4692.8349640702. The cubic root of 22022700 is about 280.3002731089.

Adding to 22022700 its reverse (722022), we get a palindrome (22744722).

It can be divided in two parts, 22022 and 700, that added together give a palindrome (22722).

The spelling of 22022700 in words is "twenty-two million, twenty-two thousand, seven hundred".