201211201 has 4 divisors (see below), whose sum is σ = 213047172. Its totient is φ = 189375232.

The previous prime is 201211189. The next prime is 201211229. The reversal of 201211201 is 102112102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 102112102 = 2 ⋅51056051.

It can be written as a sum of positive squares in 2 ways, for example, as 144600625 + 56610576 = 12025^2 + 7524^2 .

It is a cyclic number.

It is not a de Polignac number, because 201211201 - 2⁵ = 201211169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201211261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5917960 + ... + 5917993.

It is an arithmetic number, because the mean of its divisors is an integer number (53261793).

Almost surely, 2^201211201 is an apocalyptic number.

It is an amenable number.

201211201 is a deficient number, since it is larger than the sum of its proper divisors (11835971).

201211201 is a wasteful number, since it uses less digits than its factorization.

201211201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11835970.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 201211201 is about 14184.8934081297. The cubic root of 201211201 is about 585.9816969437.

Adding to 201211201 its reverse (102112102), we get a palindrome (303323303).

Subtracting from 201211201 its reverse (102112102), we obtain a palindrome (99099099).

The spelling of 201211201 in words is "two hundred one million, two hundred eleven thousand, two hundred one".