12242536441 has 4 divisors (see below), whose sum is σ = 12664692900. Its totient is φ = 11820379984.

The previous prime is 12242536343. The next prime is 12242536457. The reversal of 12242536441 is 14463524221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14463524221 = 9887 ⋅1462883.

It can be written as a sum of positive squares in 2 ways, for example, as 5996953600 + 6245582841 = 77440^2 + 79029^2 .

It is a cyclic number.

It is not a de Polignac number, because 12242536441 - 2¹⁵ = 12242503673 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12242536397 and 12242536406.

It is not an unprimeable number, because it can be changed into a prime (12242516441) 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, 211078186 + ... + 211078243.

It is an arithmetic number, because the mean of its divisors is an integer number (3166173225).

Almost surely, 2^12242536441 is an apocalyptic number.

It is an amenable number.

12242536441 is a deficient number, since it is larger than the sum of its proper divisors (422156459).

12242536441 is an equidigital number, since it uses as much as digits as its factorization.

12242536441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422156458.

The product of its digits is 46080, while the sum is 34.

The spelling of 12242536441 in words is "twelve billion, two hundred forty-two million, five hundred thirty-six thousand, four hundred forty-one".