220244204020 has 12 divisors (see below), whose sum is σ = 462512828484. Its totient is φ = 88097681600.

The previous prime is 220244204017. The next prime is 220244204027. The reversal of 220244204020 is 20402442022.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 171227129616 + 49017074404 = 413796^2 + 221398^2 .

It is a junction number, because it is equal to n+sod(n) for n = 220244203982 and 220244204000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220244204027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5506105081 + ... + 5506105120.

It is an arithmetic number, because the mean of its divisors is an integer number (38542735707).

Almost surely, 2^220244204020 is an apocalyptic number.

220244204020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220244204020 is an abundant number, since it is smaller than the sum of its proper divisors (242268624464).

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

220244204020 is a wasteful number, since it uses less digits than its factorization.

220244204020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11012210210 (or 11012210208 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 220244204020 its reverse (20402442022), we get a palindrome (240646646042).

The spelling of 220244204020 in words is "two hundred twenty billion, two hundred forty-four million, two hundred four thousand, twenty".