12142112242 has 12 divisors (see below), whose sum is σ = 19721952090. Its totient is φ = 5604051648.

The previous prime is 12142112231. The next prime is 12142112287. The reversal of 12142112242 is 24221124121.

It can be written as a sum of positive squares in 3 ways, for example, as 9657189441 + 2484922801 = 98271^2 + 49849^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17961367 + ... + 17962042.

Almost surely, 2^12142112242 is an apocalyptic number.

12142112242 is a deficient number, since it is larger than the sum of its proper divisors (7579839848).

12142112242 is a wasteful number, since it uses less digits than its factorization.

12142112242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35923437 (or 35923424 counting only the distinct ones).

The product of its digits is 512, while the sum is 22.

Adding to 12142112242 its reverse (24221124121), we get a palindrome (36363236363).

The spelling of 12142112242 in words is "twelve billion, one hundred forty-two million, one hundred twelve thousand, two hundred forty-two".