12442441252 has 18 divisors (see below), whose sum is σ = 22378681122. Its totient is φ = 6053076864.

The previous prime is 12442441247. The next prime is 12442441259. The reversal of 12442441252 is 25214424421.

It can be written as a sum of positive squares in 3 ways, for example, as 8810450496 + 3631990756 = 93864^2 + 60266^2 .

It is not an unprimeable number, because it can be changed into a prime (12442441259) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1130613 + ... + 1141564.

Almost surely, 2^12442441252 is an apocalyptic number.

It is an amenable number.

12442441252 is a deficient number, since it is larger than the sum of its proper divisors (9936239870).

12442441252 is a wasteful number, since it uses less digits than its factorization.

12442441252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2272255 (or 2272216 counting only the distinct ones).

The product of its digits is 20480, while the sum is 31.

Adding to 12442441252 its reverse (25214424421), we get a palindrome (37656865673).

The spelling of 12442441252 in words is "twelve billion, four hundred forty-two million, four hundred forty-one thousand, two hundred fifty-two".