220440244220 has 48 divisors (see below), whose sum is σ = 546122938368. Its totient is φ = 73141462080.

The previous prime is 220440244181. The next prime is 220440244267. The reversal of 220440244220 is 22442044022.

It is a self number, because there is not a number n which added to its sum of digits gives 220440244220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25392002 + ... + 25400681.

It is an arithmetic number, because the mean of its divisors is an integer number (11377561216).

Almost surely, 2^220440244220 is an apocalyptic number.

220440244220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220440244220 is an abundant number, since it is smaller than the sum of its proper divisors (325682694148).

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

220440244220 is a wasteful number, since it uses less digits than its factorization.

220440244220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50792730 (or 50792728 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 220440244220 its reverse (22442044022), we get a palindrome (242882288242).

The spelling of 220440244220 in words is "two hundred twenty billion, four hundred forty million, two hundred forty-four thousand, two hundred twenty".