200001020020 has 24 divisors (see below), whose sum is σ = 423067856904. Its totient is φ = 79416462336.

The previous prime is 200001019993. The next prime is 200001020039. The reversal of 200001020020 is 20020100002.

It is a happy number.

200001020020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 18547171344 + 181453848676 = 136188^2 + 425974^2 .

It is a junction number, because it is equal to n+sod(n) for n = 200001019985 and 200001020012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36493797 + ... + 36499276.

It is an arithmetic number, because the mean of its divisors is an integer number (17627827371).

Almost surely, 2^200001020020 is an apocalyptic number.

200001020020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200001020020 is an abundant number, since it is smaller than the sum of its proper divisors (223066836884).

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

200001020020 is a wasteful number, since it uses less digits than its factorization.

200001020020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72993219 (or 72993217 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 7.

Adding to 200001020020 its reverse (20020100002), we get a palindrome (220021120022).

The spelling of 200001020020 in words is "two hundred billion, one million, twenty thousand, twenty".