200021112220020 has 96 divisors (see below), whose sum is σ = 689303525207808. Its totient is φ = 42202256643072.

The previous prime is 200021112220001. The next prime is 200021112220021. The reversal of 200021112220020 is 20022211120002.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200021112220021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18316946209 + ... + 18316957128.

It is an arithmetic number, because the mean of its divisors is an integer number (7180245054248).

Almost surely, 2^{200021112220020} is an apocalyptic number.

200021112220020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200021112220020 is an abundant number, since it is smaller than the sum of its proper divisors (489282412987788).

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

200021112220020 is a wasteful number, since it uses less digits than its factorization.

200021112220020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36633903369 (or 36633903367 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 200021112220020 its reverse (20022211120002), we get a palindrome (220043323340022).

The spelling of 200021112220020 in words is "two hundred trillion, twenty-one billion, one hundred twelve million, two hundred twenty thousand, twenty".