22200012220 has 12 divisors (see below), whose sum is σ = 46620025704. Its totient is φ = 8880004880.

The previous prime is 22200012217. The next prime is 22200012221. The reversal of 22200012220 is 2221000222.

It is a self number, because there is not a number n which added to its sum of digits gives 22200012220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22200012221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 555000286 + ... + 555000325.

It is an arithmetic number, because the mean of its divisors is an integer number (3885002142).

Almost surely, 2^22200012220 is an apocalyptic number.

22200012220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22200012220 is an abundant number, since it is smaller than the sum of its proper divisors (24420013484).

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

22200012220 is a wasteful number, since it uses less digits than its factorization.

22200012220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110000620 (or 1110000618 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 22200012220 its reverse (2221000222), we get a palindrome (24421012442).

The spelling of 22200012220 in words is "twenty-two billion, two hundred million, twelve thousand, two hundred twenty".