220000200020 has 24 divisors (see below), whose sum is σ = 462272736744. Its totient is φ = 87948210176.

The previous prime is 220000200019. The next prime is 220000200023. The reversal of 220000200020 is 20002000022.

It can be written as a sum of positive squares in 4 ways, for example, as 30839574544 + 189160625476 = 175612^2 + 434926^2 .

220000200020 is a modest number, since divided by 200020 gives 2200 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 220000199980 and 220000200007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220000200023) 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, 3207077 + ... + 3274956.

It is an arithmetic number, because the mean of its divisors is an integer number (19261364031).

Almost surely, 2^220000200020 is an apocalyptic number.

220000200020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220000200020 is an abundant number, since it is smaller than the sum of its proper divisors (242272536724).

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

220000200020 is a wasteful number, since it uses less digits than its factorization.

220000200020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6483739 (or 6483737 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 8.

Adding to 220000200020 its reverse (20002000022), we get a palindrome (240002200042).

The spelling of 220000200020 in words is "two hundred twenty billion, two hundred thousand, twenty".