12210211111 has 8 divisors (see below), whose sum is σ = 13956823424. Its totient is φ = 10464172920.

The previous prime is 12210211109. The next prime is 12210211133. The reversal of 12210211111 is 11111201221.

It is a happy number.

12210211111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12210211111 - 2¹ = 12210211109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12210211091 and 12210211100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12210211151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96945 + ... + 183898.

It is an arithmetic number, because the mean of its divisors is an integer number (1744602928).

Almost surely, 2^12210211111 is an apocalyptic number.

12210211111 is a deficient number, since it is larger than the sum of its proper divisors (1746612313).

12210211111 is an equidigital number, since it uses as much as digits as its factorization.

12210211111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287061.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 12210211111 its reverse (11111201221), we get a palindrome (23321412332).

The spelling of 12210211111 in words is "twelve billion, two hundred ten million, two hundred eleven thousand, one hundred eleven".