201212211 has 8 divisors (see below), whose sum is σ = 279947520. Its totient is φ = 128309192.

The previous prime is 201212161. The next prime is 201212273. The reversal of 201212211 is 112212102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201212211 - 2¹⁰ = 201211187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201212611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1457991 + ... + 1458128.

It is an arithmetic number, because the mean of its divisors is an integer number (34993440).

Almost surely, 2^201212211 is an apocalyptic number.

201212211 is a deficient number, since it is larger than the sum of its proper divisors (78735309).

201212211 is a wasteful number, since it uses less digits than its factorization.

201212211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2916145.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 201212211 is about 14184.9290093395. The cubic root of 201212211 is about 585.9826774069.

Adding to 201212211 its reverse (112212102), we get a palindrome (313424313).

The spelling of 201212211 in words is "two hundred one million, two hundred twelve thousand, two hundred eleven".