12112111201 has 4 divisors (see below), whose sum is σ = 12114360000. Its totient is φ = 12109862404.

The previous prime is 12112111199. The next prime is 12112111223. The reversal of 12112111201 is 10211121121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10211121121 = 859 ⋅11887219.

It is a cyclic number.

It is not a de Polignac number, because 12112111201 - 2¹ = 12112111199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12112117201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1116301 + ... + 1127098.

It is an arithmetic number, because the mean of its divisors is an integer number (3028590000).

Almost surely, 2^12112111201 is an apocalyptic number.

It is an amenable number.

12112111201 is a deficient number, since it is larger than the sum of its proper divisors (2248799).

12112111201 is an equidigital number, since it uses as much as digits as its factorization.

12112111201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2248798.

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

Adding to 12112111201 its reverse (10211121121), we get a palindrome (22323232322).

The spelling of 12112111201 in words is "twelve billion, one hundred twelve million, one hundred eleven thousand, two hundred one".