22201224220 has 48 divisors (see below), whose sum is σ = 54522091008. Its totient is φ = 7434826560.

The previous prime is 22201224211. The next prime is 22201224223. The reversal of 22201224220 is 2242210222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22201224223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1837936 + ... + 1849975.

It is an arithmetic number, because the mean of its divisors is an integer number (1135876896).

Almost surely, 2^22201224220 is an apocalyptic number.

22201224220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22201224220 is an abundant number, since it is smaller than the sum of its proper divisors (32320866788).

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

22201224220 is a wasteful number, since it uses less digits than its factorization.

22201224220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3687970 (or 3687968 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 22201224220 its reverse (2242210222), we get a palindrome (24443434442).

The spelling of 22201224220 in words is "twenty-two billion, two hundred one million, two hundred twenty-four thousand, two hundred twenty".