201212201 has 4 divisors (see below), whose sum is σ = 202748304. Its totient is φ = 199676100.

The previous prime is 201212161. The next prime is 201212273. The reversal of 201212201 is 102212102.

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, and also an emirpimes, since its reverse is a distinct semiprime: 102212102 = 2 ⋅51106051.

It is a cyclic number.

It is not a de Polignac number, because 201212201 - 2¹⁴ = 201195817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201212101) 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, 767855 + ... + 768116.

It is an arithmetic number, because the mean of its divisors is an integer number (50687076).

Almost surely, 2^201212201 is an apocalyptic number.

It is an amenable number.

201212201 is a deficient number, since it is larger than the sum of its proper divisors (1536103).

201212201 is a wasteful number, since it uses less digits than its factorization.

201212201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1536102.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 201212201 is about 14184.9286568527. The cubic root of 201212201 is about 585.9826676994.

Adding to 201212201 its reverse (102212102), we get a palindrome (303424303).

Subtracting from 201212201 its reverse (102212102), we obtain a palindrome (99000099).

It can be divided in two parts, 20121 and 2201, that added together give a palindrome (22322).

The spelling of 201212201 in words is "two hundred one million, two hundred twelve thousand, two hundred one".