12112442 has 4 divisors (see below), whose sum is σ = 18168666. Its totient is φ = 6056220.

The previous prime is 12112433. The next prime is 12112447. The reversal of 12112442 is 24421121.

12112442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 7946761 + 4165681 = 2819^2 + 2041^2 .

It is a super-2 number, since 2×12112442² = 293422502406728, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12112442.

It is not an unprimeable number, because it can be changed into a prime (12112447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3028109 + ... + 3028112.

Almost surely, 2^12112442 is an apocalyptic number.

12112442 is a deficient number, since it is larger than the sum of its proper divisors (6056224).

12112442 is an equidigital number, since it uses as much as digits as its factorization.

12112442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6056223.

The product of its digits is 128, while the sum is 17.

The square root of 12112442 is about 3480.2933784381. The cubic root of 12112442 is about 229.6557041491.

Adding to 12112442 its reverse (24421121), we get a palindrome (36533563).

The spelling of 12112442 in words is "twelve million, one hundred twelve thousand, four hundred forty-two".