212111002211 has 4 divisors (see below), whose sum is σ = 214297713672. Its totient is φ = 209924290752.

The previous prime is 212111002199. The next prime is 212111002237. The reversal of 212111002211 is 112200111212.

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 212111002211 - 2³⁴ = 194931133027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212111002261) 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 3 ways as a sum of consecutive naturals, for example, 1093355585 + ... + 1093355778.

It is an arithmetic number, because the mean of its divisors is an integer number (53574428418).

Almost surely, 2^212111002211 is an apocalyptic number.

212111002211 is a deficient number, since it is larger than the sum of its proper divisors (2186711461).

212111002211 is an equidigital number, since it uses as much as digits as its factorization.

212111002211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2186711460.

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

Adding to 212111002211 its reverse (112200111212), we get a palindrome (324311113423).

The spelling of 212111002211 in words is "two hundred twelve billion, one hundred eleven million, two thousand, two hundred eleven".