212120220211 has 8 divisors (see below), whose sum is σ = 218509988400. Its totient is φ = 205796667552.

The previous prime is 212120220203. The next prime is 212120220217. The reversal of 212120220211 is 112022021212.

It is a happy number.

212120220211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 212120220211 - 2³ = 212120220203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212120220217) 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 7 ways as a sum of consecutive naturals, for example, 16547380 + ... + 16560193.

It is an arithmetic number, because the mean of its divisors is an integer number (27313748550).

Almost surely, 2^212120220211 is an apocalyptic number.

212120220211 is a deficient number, since it is larger than the sum of its proper divisors (6389768189).

212120220211 is a wasteful number, since it uses less digits than its factorization.

212120220211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33107765.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 212120220211 its reverse (112022021212), we get a palindrome (324142241423).

The spelling of 212120220211 in words is "two hundred twelve billion, one hundred twenty million, two hundred twenty thousand, two hundred eleven".