12442244273 has 2 divisors, whose sum is σ = 12442244274. Its totient is φ = 12442244272.

The previous prime is 12442244249. The next prime is 12442244279. The reversal of 12442244273 is 37244224421.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8831676529 + 3610567744 = 93977^2 + 60088^2 .

It is a cyclic number.

It is not a de Polignac number, because 12442244273 - 2⁶ = 12442244209 is a prime.

It is not a weakly prime, because it can be changed into another prime (12442244279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6221122136 + 6221122137.

It is an arithmetic number, because the mean of its divisors is an integer number (6221122137).

Almost surely, 2^12442244273 is an apocalyptic number.

It is an amenable number.

12442244273 is a deficient number, since it is larger than the sum of its proper divisors (1).

12442244273 is an equidigital number, since it uses as much as digits as its factorization.

12442244273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 86016, while the sum is 35.

Adding to 12442244273 its reverse (37244224421), we get a palindrome (49686468694).

The spelling of 12442244273 in words is "twelve billion, four hundred forty-two million, two hundred forty-four thousand, two hundred seventy-three".