201211201211 has 8 divisors (see below), whose sum is σ = 203224924848. Its totient is φ = 199197900000.

The previous prime is 201211201183. The next prime is 201211201267. The reversal of 201211201211 is 112102112102.

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 201211201211 - 2¹⁸ = 201210939067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201211201271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 899396 + ... + 1100606.

It is an arithmetic number, because the mean of its divisors is an integer number (25403115606).

Almost surely, 2^201211201211 is an apocalyptic number.

201211201211 is a deficient number, since it is larger than the sum of its proper divisors (2013723637).

201211201211 is a wasteful number, since it uses less digits than its factorization.

201211201211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211213.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 201211201211 its reverse (112102112102), we get a palindrome (313313313313).

The spelling of 201211201211 in words is "two hundred one billion, two hundred eleven million, two hundred one thousand, two hundred eleven".