20010201 has 4 divisors (see below), whose sum is σ = 26680272. Its totient is φ = 13340132.

The previous prime is 20010197. The next prime is 20010209. The reversal of 20010201 is 10201002.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20010201 - 2² = 20010197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20010201.

It is not an unprimeable number, because it can be changed into a prime (20010209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3335031 + ... + 3335036.

It is an arithmetic number, because the mean of its divisors is an integer number (6670068).

Almost surely, 2^20010201 is an apocalyptic number.

It is an amenable number.

20010201 is a deficient number, since it is larger than the sum of its proper divisors (6670071).

20010201 is an equidigital number, since it uses as much as digits as its factorization.

20010201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6670070.

The product of its (nonzero) digits is 4, while the sum is 6.

The square root of 20010201 is about 4473.2763160797. The cubic root of 20010201 is about 271.4879034390.

Adding to 20010201 its reverse (10201002), we get a palindrome (30211203).

It can be divided in two parts, 200 and 10201, that added together give a palindrome (10401).

The spelling of 20010201 in words is "twenty million, ten thousand, two hundred one".