12112440313242 has 32 divisors (see below), whose sum is σ = 24321511526400. Its totient is φ = 4021380663920.

The previous prime is 12112440313231. The next prime is 12112440313249. The reversal of 12112440313242 is 24231304421121.

It is a happy number.

It is a super-2 number, since 2×12112440313242² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12112440313249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7808767 + ... + 9230477.

It is an arithmetic number, because the mean of its divisors is an integer number (760047235200).

Almost surely, 2^{12112440313242} is an apocalyptic number.

12112440313242 is an abundant number, since it is smaller than the sum of its proper divisors (12209071213158).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12112440313242 is a wasteful number, since it uses less digits than its factorization.

12112440313242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1427378.

The product of its (nonzero) digits is 9216, while the sum is 30.

Adding to 12112440313242 its reverse (24231304421121), we get a palindrome (36343744734363).

The spelling of 12112440313242 in words is "twelve trillion, one hundred twelve billion, four hundred forty million, three hundred thirteen thousand, two hundred forty-two".