12110111211 has 48 divisors (see below), whose sum is σ = 19218101760. Its totient is φ = 6720837120.

The previous prime is 12110111173. The next prime is 12110111231. The reversal of 12110111211 is 11211101121.

It is not a de Polignac number, because 12110111211 - 2¹⁴ = 12110094827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12110111231) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 335710 + ... + 370028.

It is an arithmetic number, because the mean of its divisors is an integer number (400377120).

Almost surely, 2^12110111211 is an apocalyptic number.

12110111211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12110111211 is a deficient number, since it is larger than the sum of its proper divisors (7107990549).

12110111211 is a wasteful number, since it uses less digits than its factorization.

12110111211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34404 (or 34387 counting only the distinct ones).

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

Adding to 12110111211 its reverse (11211101121), we get a palindrome (23321212332).

It can be divided in two parts, 12110 and 111211, that added together give a palindrome (123321).

The spelling of 12110111211 in words is "twelve billion, one hundred ten million, one hundred eleven thousand, two hundred eleven".