12112122441 has 4 divisors (see below), whose sum is σ = 16149496592. Its totient is φ = 8074748292.

The previous prime is 12112122403. The next prime is 12112122487. The reversal of 12112122441 is 14422121121.

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: 14422121121 = 3 ⋅4807373707.

It is not a de Polignac number, because 12112122441 - 2⁹ = 12112121929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12112122541) 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, 2018687071 + ... + 2018687076.

It is an arithmetic number, because the mean of its divisors is an integer number (4037374148).

Almost surely, 2^12112122441 is an apocalyptic number.

It is an amenable number.

12112122441 is a deficient number, since it is larger than the sum of its proper divisors (4037374151).

12112122441 is an equidigital number, since it uses as much as digits as its factorization.

12112122441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4037374150.

The product of its digits is 256, while the sum is 21.

Adding to 12112122441 its reverse (14422121121), we get a palindrome (26534243562).

The spelling of 12112122441 in words is "twelve billion, one hundred twelve million, one hundred twenty-two thousand, four hundred forty-one".