211112122201 has 4 divisors (see below), whose sum is σ = 211720514832. Its totient is φ = 210503729572.

The previous prime is 211112122189. The next prime is 211112122267. The reversal of 211112122201 is 102221211112.

211112122201 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211112122201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211112122271) 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 3 ways as a sum of consecutive naturals, for example, 304195795 + ... + 304196488.

It is an arithmetic number, because the mean of its divisors is an integer number (52930128708).

Almost surely, 2^211112122201 is an apocalyptic number.

It is an amenable number.

211112122201 is a deficient number, since it is larger than the sum of its proper divisors (608392631).

211112122201 is an equidigital number, since it uses as much as digits as its factorization.

211112122201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608392630.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 211112122201 its reverse (102221211112), we get a palindrome (313333333313).

The spelling of 211112122201 in words is "two hundred eleven billion, one hundred twelve million, one hundred twenty-two thousand, two hundred one".