212110010122211 has 4 divisors (see below), whose sum is σ = 214493268663000. Its totient is φ = 209726751581424.

The previous prime is 212110010122141. The next prime is 212110010122217. The reversal of 212110010122211 is 112221010011212.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212110010122211 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212110010122211.

It is not an unprimeable number, because it can be changed into a prime (212110010122217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1191629270261 + ... + 1191629270438.

It is an arithmetic number, because the mean of its divisors is an integer number (53623317165750).

Almost surely, 2^{212110010122211} is an apocalyptic number.

212110010122211 is a deficient number, since it is larger than the sum of its proper divisors (2383258540789).

212110010122211 is an equidigital number, since it uses as much as digits as its factorization.

212110010122211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2383258540788.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 212110010122211 its reverse (112221010011212), we get a palindrome (324331020133423).

The spelling of 212110010122211 in words is "two hundred twelve trillion, one hundred ten billion, ten million, one hundred twenty-two thousand, two hundred eleven".