211111201210201 has 4 divisors (see below), whose sum is σ = 211328617484304. Its totient is φ = 210893784936100.

The previous prime is 211111201210109. The next prime is 211111201210207. The reversal of 211111201210201 is 102012102111112.

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 not a de Polignac number, because 211111201210201 - 2⁴⁷ = 70373712854873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211111201210207) 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, 108708135595 + ... + 108708137536.

It is an arithmetic number, because the mean of its divisors is an integer number (52832154371076).

Almost surely, 2^{211111201210201} is an apocalyptic number.

It is an amenable number.

211111201210201 is a deficient number, since it is larger than the sum of its proper divisors (217416274103).

211111201210201 is an equidigital number, since it uses as much as digits as its factorization.

211111201210201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217416274102.

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

Adding to 211111201210201 its reverse (102012102111112), we get a palindrome (313123303321313).

The spelling of 211111201210201 in words is "two hundred eleven trillion, one hundred eleven billion, two hundred one million, two hundred ten thousand, two hundred one".