212101102211 has 4 divisors (see below), whose sum is σ = 213505745424. Its totient is φ = 210696459000.

The previous prime is 212101102207. The next prime is 212101102229. The reversal of 212101102211 is 112201101212.

212101102211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 212101102211 - 2² = 212101102207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212101102711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 702321380 + ... + 702321681.

It is an arithmetic number, because the mean of its divisors is an integer number (53376436356).

Almost surely, 2^212101102211 is an apocalyptic number.

212101102211 is a deficient number, since it is larger than the sum of its proper divisors (1404643213).

212101102211 is a wasteful number, since it uses less digits than its factorization.

212101102211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1404643212.

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

Adding to 212101102211 its reverse (112201101212), we get a palindrome (324302203423).

Subtracting from 212101102211 its reverse (112201101212), we obtain a palindrome (99900000999).

The spelling of 212101102211 in words is "two hundred twelve billion, one hundred one million, one hundred two thousand, two hundred eleven".