12400222273 has 2 divisors, whose sum is σ = 12400222274. Its totient is φ = 12400222272.

The previous prime is 12400222253. The next prime is 12400222319. The reversal of 12400222273 is 37222200421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8473570704 + 3926651569 = 92052^2 + 62663^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12400222273 is a prime.

It is not a weakly prime, because it can be changed into another prime (12400222213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6200111136 + 6200111137.

It is an arithmetic number, because the mean of its divisors is an integer number (6200111137).

Almost surely, 2^12400222273 is an apocalyptic number.

It is an amenable number.

12400222273 is a deficient number, since it is larger than the sum of its proper divisors (1).

12400222273 is an equidigital number, since it uses as much as digits as its factorization.

12400222273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 25.

Adding to 12400222273 its reverse (37222200421), we get a palindrome (49622422694).

The spelling of 12400222273 in words is "twelve billion, four hundred million, two hundred twenty-two thousand, two hundred seventy-three".