211112102122111 has 4 divisors (see below), whose sum is σ = 211148862027232. Its totient is φ = 211075342216992.

The previous prime is 211112102122093. The next prime is 211112102122127. The reversal of 211112102122111 is 111221201211112.

211112102122111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 211112102122111 - 2¹⁷ = 211112101991039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211112102129111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18379943946 + ... + 18379955431.

It is an arithmetic number, because the mean of its divisors is an integer number (52787215506808).

Almost surely, 2^{211112102122111} is an apocalyptic number.

211112102122111 is a deficient number, since it is larger than the sum of its proper divisors (36759905121).

211112102122111 is an equidigital number, since it uses as much as digits as its factorization.

211112102122111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36759905120.

The product of its (nonzero) digits is 32, while the sum is 19.

Adding to 211112102122111 its reverse (111221201211112), we get a palindrome (322333303333223).

The spelling of 211112102122111 in words is "two hundred eleven trillion, one hundred twelve billion, one hundred two million, one hundred twenty-two thousand, one hundred eleven".