12045222377 has 2 divisors, whose sum is σ = 12045222378. Its totient is φ = 12045222376.

The previous prime is 12045222341. The next prime is 12045222389. The reversal of 12045222377 is 77322254021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10138677481 + 1906544896 = 100691^2 + 43664^2 .

It is a cyclic number.

It is not a de Polignac number, because 12045222377 - 2²⁴ = 12028445161 is a prime.

It is a super-2 number, since 2×12045222377² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12045222677) 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 as a sum of consecutive naturals, namely, 6022611188 + 6022611189.

It is an arithmetic number, because the mean of its divisors is an integer number (6022611189).

Almost surely, 2^12045222377 is an apocalyptic number.

It is an amenable number.

12045222377 is a deficient number, since it is larger than the sum of its proper divisors (1).

12045222377 is an equidigital number, since it uses as much as digits as its factorization.

12045222377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47040, while the sum is 35.

Adding to 12045222377 its reverse (77322254021), we get a palindrome (89367476398).

The spelling of 12045222377 in words is "twelve billion, forty-five million, two hundred twenty-two thousand, three hundred seventy-seven".