22203241220 has 24 divisors (see below), whose sum is σ = 47322731904. Its totient is φ = 8748739296.

The previous prime is 22203241219. The next prime is 22203241223. The reversal of 22203241220 is 2214230222.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 22203241192 and 22203241201.

It is not an unprimeable number, because it can be changed into a prime (22203241223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8283452 + ... + 8286131.

It is an arithmetic number, because the mean of its divisors is an integer number (1971780496).

Almost surely, 2^22203241220 is an apocalyptic number.

22203241220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22203241220 is an abundant number, since it is smaller than the sum of its proper divisors (25119490684).

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

22203241220 is a wasteful number, since it uses less digits than its factorization.

22203241220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16569659 (or 16569657 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 22203241220 its reverse (2214230222), we get a palindrome (24417471442).

The spelling of 22203241220 in words is "twenty-two billion, two hundred three million, two hundred forty-one thousand, two hundred twenty".