201010201 has 6 divisors (see below), whose sum is σ = 233828250. Its totient is φ = 172294416.

The previous prime is 201010171. The next prime is 201010213. The reversal of 201010201 is 102010102.

It can be written as a sum of positive squares in only one way, i.e., 166435801 + 34574400 = 12901^2 + 5880^2 .

It is not a de Polignac number, because 201010201 - 2⁹ = 201009689 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (7).

It is a Duffinian 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 5 ways as a sum of consecutive naturals, for example, 2051076 + ... + 2051173.

It is an arithmetic number, because the mean of its divisors is an integer number (38971375).

Almost surely, 2^201010201 is an apocalyptic number.

It is an amenable number.

201010201 is a deficient number, since it is larger than the sum of its proper divisors (32818049).

201010201 is an equidigital number, since it uses as much as digits as its factorization.

201010201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4102263 (or 4102256 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 201010201 is about 14177.8066357247. The cubic root of 201010201 is about 585.7865097278.

Adding to 201010201 its reverse (102010102), we get a palindrome (303020303).

Subtracting from 201010201 its reverse (102010102), we obtain a palindrome (99000099).

The spelling of 201010201 in words is "two hundred one million, ten thousand, two hundred one".