22220300220 has 96 divisors (see below), whose sum is σ = 63021623616. Its totient is φ = 5849088000.

The previous prime is 22220300213. The next prime is 22220300231. The reversal of 22220300220 is 2200302222.

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 22220300220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2329060 + ... + 2338580.

It is an arithmetic number, because the mean of its divisors is an integer number (656475246).

Almost surely, 2^22220300220 is an apocalyptic number.

22220300220 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 22220300220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31510811808).

22220300220 is an abundant number, since it is smaller than the sum of its proper divisors (40801323396).

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

22220300220 is a wasteful number, since it uses less digits than its factorization.

22220300220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10031 (or 10029 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

Adding to 22220300220 its reverse (2200302222), we get a palindrome (24420602442).

The spelling of 22220300220 in words is "twenty-two billion, two hundred twenty million, three hundred thousand, two hundred twenty".