212102201211 has 4 divisors (see below), whose sum is σ = 282802934952. Its totient is φ = 141401467472.

The previous prime is 212102201197. The next prime is 212102201249. The reversal of 212102201211 is 112102201212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212102201211 - 2¹¹ = 212102199163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212102201911) 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, 35350366866 + ... + 35350366871.

It is an arithmetic number, because the mean of its divisors is an integer number (70700733738).

Almost surely, 2^212102201211 is an apocalyptic number.

212102201211 is a deficient number, since it is larger than the sum of its proper divisors (70700733741).

212102201211 is an equidigital number, since it uses as much as digits as its factorization.

212102201211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70700733740.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 212102201211 its reverse (112102201212), we get a palindrome (324204402423).

Subtracting from 212102201211 its reverse (112102201212), we obtain a palindrome (99999999999).

The spelling of 212102201211 in words is "two hundred twelve billion, one hundred two million, two hundred one thousand, two hundred eleven".