200200021020 has 72 divisors (see below), whose sum is σ = 633676601376. Its totient is φ = 51065511552.

The previous prime is 200200021013. The next prime is 200200021031. The reversal of 200200021020 is 20120002002.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 200200020993 and 200200021011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24174607 + ... + 24182886.

It is an arithmetic number, because the mean of its divisors is an integer number (8801063908).

Almost surely, 2^200200021020 is an apocalyptic number.

200200021020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200200021020 is an abundant number, since it is smaller than the sum of its proper divisors (433476580356).

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

200200021020 is a wasteful number, since it uses less digits than its factorization.

200200021020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48357531 (or 48357526 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 200200021020 its reverse (20120002002), we get a palindrome (220320023022).

The spelling of 200200021020 in words is "two hundred billion, two hundred million, twenty-one thousand, twenty".