12122443241 has 4 divisors (see below), whose sum is σ = 12166206852. Its totient is φ = 12078679632.

The previous prime is 12122443217. The next prime is 12122443253. The reversal of 12122443241 is 14234422121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14234422121 = 613 ⋅23220917.

It can be written as a sum of positive squares in 2 ways, for example, as 5434638400 + 6687804841 = 73720^2 + 81779^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12122443241 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12122443241.

It is not an unprimeable number, because it can be changed into a prime (12122443261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21881390 + ... + 21881943.

It is an arithmetic number, because the mean of its divisors is an integer number (3041551713).

Almost surely, 2^12122443241 is an apocalyptic number.

It is an amenable number.

12122443241 is a deficient number, since it is larger than the sum of its proper divisors (43763611).

12122443241 is an equidigital number, since it uses as much as digits as its factorization.

12122443241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43763610.

The product of its digits is 3072, while the sum is 26.

Adding to 12122443241 its reverse (14234422121), we get a palindrome (26356865362).

The spelling of 12122443241 in words is "twelve billion, one hundred twenty-two million, four hundred forty-three thousand, two hundred forty-one".