211000222112111 has 4 divisors (see below), whose sum is σ = 211023015706992. Its totient is φ = 210977428517232.

The previous prime is 211000222112081. The next prime is 211000222112129. The reversal of 211000222112111 is 111211222000112.

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 211000222112111 - 2³⁴ = 210983042242927 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 211000222112111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211000222112131) 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, 11396783555 + ... + 11396802068.

It is an arithmetic number, because the mean of its divisors is an integer number (52755753926748).

Almost surely, 2^{211000222112111} is an apocalyptic number.

211000222112111 is a deficient number, since it is larger than the sum of its proper divisors (22793594881).

211000222112111 is an equidigital number, since it uses as much as digits as its factorization.

211000222112111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22793594880.

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

Adding to 211000222112111 its reverse (111211222000112), we get a palindrome (322211444112223).

The spelling of 211000222112111 in words is "two hundred eleven trillion, two hundred twenty-two million, one hundred twelve thousand, one hundred eleven".