212201211211 has 16 divisors (see below), whose sum is σ = 235266950880. Its totient is φ = 189778187520.

The previous prime is 212201211169. The next prime is 212201211221. The reversal of 212201211211 is 112112102212.

It is a cyclic number.

It is not a de Polignac number, because 212201211211 - 2¹⁷ = 212201080139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212201211221) 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 15 ways as a sum of consecutive naturals, for example, 27300 + ... + 652033.

It is an arithmetic number, because the mean of its divisors is an integer number (14704184430).

Almost surely, 2^212201211211 is an apocalyptic number.

212201211211 is a deficient number, since it is larger than the sum of its proper divisors (23065739669).

212201211211 is a wasteful number, since it uses less digits than its factorization.

212201211211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679806.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 212201211211 its reverse (112112102212), we get a palindrome (324313313423).

The spelling of 212201211211 in words is "two hundred twelve billion, two hundred one million, two hundred eleven thousand, two hundred eleven".