12294449221 has 2 divisors, whose sum is σ = 12294449222. Its totient is φ = 12294449220.

The previous prime is 12294449191. The next prime is 12294449227.

12294449221 is nontrivially palindromic in base 10.

12294449221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8581984321 + 3712464900 = 92639^2 + 60930^2 .

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 12294449221 - 2⁷ = 12294449093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12294449227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6147224610 + 6147224611.

It is an arithmetic number, because the mean of its divisors is an integer number (6147224611).

Almost surely, 2^12294449221 is an apocalyptic number.

It is an amenable number.

12294449221 is a deficient number, since it is larger than the sum of its proper divisors (1).

12294449221 is an equidigital number, since it uses as much as digits as its factorization.

12294449221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82944, while the sum is 40.

The spelling of 12294449221 in words is "twelve billion, two hundred ninety-four million, four hundred forty-nine thousand, two hundred twenty-one".