12112011211 has 8 divisors (see below), whose sum is σ = 12532038480. Its totient is φ = 11692142112.

The previous prime is 12112011181. The next prime is 12112011227. The reversal of 12112011211 is 11211021121.

It is a happy number.

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 12112011211 - 2⁵ = 12112011179 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12112011191 and 12112011200.

It is not an unprimeable number, because it can be changed into a prime (12112011011) 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, 128416 + ... + 201778.

It is an arithmetic number, because the mean of its divisors is an integer number (1566504810).

Almost surely, 2^12112011211 is an apocalyptic number.

12112011211 is a deficient number, since it is larger than the sum of its proper divisors (420027269).

12112011211 is an equidigital number, since it uses as much as digits as its factorization.

12112011211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79085.

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

Adding to 12112011211 its reverse (11211021121), we get a palindrome (23323032332).

The spelling of 12112011211 in words is "twelve billion, one hundred twelve million, eleven thousand, two hundred eleven".