204020000220 has 48 divisors (see below), whose sum is σ = 586695358368. Its totient is φ = 52934918400.

The previous prime is 204020000167. The next prime is 204020000221. The reversal of 204020000220 is 22000020402.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 204020000196 and 204020000205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204020000221) 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, 45948231 + ... + 45952670.

It is an arithmetic number, because the mean of its divisors is an integer number (12222819966).

Almost surely, 2^204020000220 is an apocalyptic number.

204020000220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204020000220 is an abundant number, since it is smaller than the sum of its proper divisors (382675358148).

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

204020000220 is a wasteful number, since it uses less digits than its factorization.

204020000220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91900950 (or 91900948 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 12.

Adding to 204020000220 its reverse (22000020402), we get a palindrome (226020020622).

The spelling of 204020000220 in words is "two hundred four billion, twenty million, two hundred twenty", and thus it is an aban number.