211112120109 has 32 divisors (see below), whose sum is σ = 310376102400. Its totient is φ = 126576624960.

The previous prime is 211112120083. The next prime is 211112120143. The reversal of 211112120109 is 901021211112.

211112120109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 211112120109 - 2⁹ = 211112119597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211112121109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1216807 + ... + 1379435.

It is an arithmetic number, because the mean of its divisors is an integer number (9699253200).

Almost surely, 2^211112120109 is an apocalyptic number.

It is an amenable number.

211112120109 is a deficient number, since it is larger than the sum of its proper divisors (99263982291).

211112120109 is a wasteful number, since it uses less digits than its factorization.

211112120109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163065.

The product of its (nonzero) digits is 72, while the sum is 21.

The spelling of 211112120109 in words is "two hundred eleven billion, one hundred twelve million, one hundred twenty thousand, one hundred nine".