12112321021211 has 8 divisors (see below), whose sum is σ = 12132706250784. Its totient is φ = 12091942019520.

The previous prime is 12112321021193. The next prime is 12112321021217. The reversal of 12112321021211 is 11212012321121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12112321021211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12112321021217) 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, 2344226 + ... + 5451608.

It is an arithmetic number, because the mean of its divisors is an integer number (1516588281348).

Almost surely, 2^{12112321021211} is an apocalyptic number.

12112321021211 is a deficient number, since it is larger than the sum of its proper divisors (20385229573).

12112321021211 is an equidigital number, since it uses as much as digits as its factorization.

12112321021211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3113941.

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 12112321021211 its reverse (11212012321121), we get a palindrome (23324333342332).

The spelling of 12112321021211 in words is "twelve trillion, one hundred twelve billion, three hundred twenty-one million, twenty-one thousand, two hundred eleven".