211142212211 has 6 divisors (see below), whose sum is σ = 245614410180. Its totient is φ = 180979038996.

The previous prime is 211142212153. The next prime is 211142212271. The reversal of 211142212211 is 112212241112.

211142212211 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 211142212211 - 2⁶ = 211142212147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211142212271) 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 5 ways as a sum of consecutive naturals, for example, 2154512321 + ... + 2154512418.

It is an arithmetic number, because the mean of its divisors is an integer number (40935735030).

Almost surely, 2^211142212211 is an apocalyptic number.

211142212211 is a deficient number, since it is larger than the sum of its proper divisors (34472197969).

211142212211 is an equidigital number, since it uses as much as digits as its factorization.

211142212211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4309024753 (or 4309024746 counting only the distinct ones).

The product of its digits is 128, while the sum is 20.

Adding to 211142212211 its reverse (112212241112), we get a palindrome (323354453323).

The spelling of 211142212211 in words is "two hundred eleven billion, one hundred forty-two million, two hundred twelve thousand, two hundred eleven".