201010000 has 50 divisors (see below), whose sum is σ = 486689522. Its totient is φ = 80400000.

The previous prime is 201009997. The next prime is 201010001. The reversal of 201010000 is 10102.

It can be written as a sum of positive squares in 5 ways, for example, as 95413824 + 105596176 = 9768^2 + 10276^2 .

It is a tau number, because it is divible by the number of its divisors (50).

It is a Harshad number since it is a multiple of its sum of digits (4).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201010001) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 51 + ... + 20050.

Almost surely, 2^201010000 is an apocalyptic number.

201010000 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 201010000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243344761).

201010000 is an abundant number, since it is smaller than the sum of its proper divisors (285679522).

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

201010000 is an equidigital number, since it uses as much as digits as its factorization.

201010000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20129 (or 20108 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 4.

The square root of 201010000 is about 14177.7995471794. The cubic root of 201010000 is about 585.7863144754.

Adding to 201010000 its reverse (10102), we get a palindrome (201020102).

The spelling of 201010000 in words is "two hundred one million, ten thousand".