201020200 has 24 divisors (see below), whose sum is σ = 467372430. Its totient is φ = 80408000.

The previous prime is 201020191. The next prime is 201020201. The reversal of 201020200 is 2020102.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 117809316 + 83210884 = 10854^2 + 9122^2 .

It is not an unprimeable number, because it can be changed into a prime (201020201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 502351 + ... + 502750.

Almost surely, 2^201020200 is an apocalyptic number.

201020200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201020200 is an abundant number, since it is smaller than the sum of its proper divisors (266352230).

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

201020200 is a wasteful number, since it uses less digits than its factorization.

201020200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005117 (or 1005108 counting only the distinct ones).

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

The square root of 201020200 is about 14178.1592599322. The cubic root of 201020200 is about 585.7962226381.

Adding to 201020200 its reverse (2020102), we get a palindrome (203040302).

The spelling of 201020200 in words is "two hundred one million, twenty thousand, two hundred".