22000220 has 36 divisors (see below), whose sum is σ = 50787912. Its totient is φ = 7999200.

The previous prime is 22000211. The next prime is 22000243. The reversal of 22000220 is 2200022.

It is a junction number, because it is equal to n+sod(n) for n = 22000198 and 22000207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2126 + ... + 6965.

Almost surely, 2^22000220 is an apocalyptic number.

22000220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22000220 is an abundant number, since it is smaller than the sum of its proper divisors (28787692).

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

22000220 is a wasteful number, since it uses less digits than its factorization.

22000220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9122 (or 9109 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 8.

The square root of 22000220 is about 4690.4392118436. The cubic root of 22000220 is about 280.2048670755.

Adding to 22000220 its reverse (2200022), we get a palindrome (24200242).

It can be divided in two parts, 220002 and 20, that added together give a palindrome (220022).

The spelling of 22000220 in words is "twenty-two million, two hundred twenty", and thus it is an aban number.