12111110211 has 8 divisors (see below), whose sum is σ = 16584583504. Its totient is φ = 7855855200.

The previous prime is 12111110203. The next prime is 12111110237. The reversal of 12111110211 is 11201111121.

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

It is not a de Polignac number, because 12111110211 - 2³ = 12111110203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12111110201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54554440 + ... + 54554661.

It is an arithmetic number, because the mean of its divisors is an integer number (2073072938).

Almost surely, 2^12111110211 is an apocalyptic number.

12111110211 is a deficient number, since it is larger than the sum of its proper divisors (4473473293).

12111110211 is a wasteful number, since it uses less digits than its factorization.

12111110211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109109141.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 12111110211 its reverse (11201111121), we get a palindrome (23312221332).

The spelling of 12111110211 in words is "twelve billion, one hundred eleven million, one hundred ten thousand, two hundred eleven".