200021200 has 60 divisors (see below), whose sum is σ = 487388448. Its totient is φ = 78870400.

The previous prime is 200021183. The next prime is 200021203. The reversal of 200021200 is 2120002.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200021203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24879 + ... + 31921.

Almost surely, 2^200021200 is an apocalyptic number.

200021200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200021200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243694224).

200021200 is an abundant number, since it is smaller than the sum of its proper divisors (287367248).

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

200021200 is a wasteful number, since it uses less digits than its factorization.

200021200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7132 (or 7121 counting only the distinct ones).

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

The square root of 200021200 is about 14142.8851370574. The cubic root of 200021200 is about 584.8242099712.

Adding to 200021200 its reverse (2120002), we get a palindrome (202141202).

The spelling of 200021200 in words is "two hundred million, twenty-one thousand, two hundred".