211200000022211 has 4 divisors (see below), whose sum is σ = 211200329059800. Its totient is φ = 211199670984624.

The previous prime is 211200000022171. The next prime is 211200000022223. The reversal of 211200000022211 is 112220000002112.

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-211200000022211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211200000042211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163554101 + ... + 164840358.

It is an arithmetic number, because the mean of its divisors is an integer number (52800082264950).

Almost surely, 2^{211200000022211} is an apocalyptic number.

211200000022211 is a deficient number, since it is larger than the sum of its proper divisors (329037589).

211200000022211 is an equidigital number, since it uses as much as digits as its factorization.

211200000022211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329037588.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 211200000022211 its reverse (112220000002112), we get a palindrome (323420000024323).

The spelling of 211200000022211 in words is "two hundred eleven trillion, two hundred billion, twenty-two thousand, two hundred eleven".