12225173749 has 2 divisors, whose sum is σ = 12225173750. Its totient is φ = 12225173748.

The previous prime is 12225173687. The next prime is 12225173783. The reversal of 12225173749 is 94737152221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12140073124 + 85100625 = 110182^2 + 9225^2 .

It is a cyclic number.

It is not a de Polignac number, because 12225173749 - 2¹⁵ = 12225140981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12225174749) 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, 6112586874 + 6112586875.

It is an arithmetic number, because the mean of its divisors is an integer number (6112586875).

Almost surely, 2^12225173749 is an apocalyptic number.

It is an amenable number.

12225173749 is a deficient number, since it is larger than the sum of its proper divisors (1).

12225173749 is an equidigital number, since it uses as much as digits as its factorization.

12225173749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 211680, while the sum is 43.

The spelling of 12225173749 in words is "twelve billion, two hundred twenty-five million, one hundred seventy-three thousand, seven hundred forty-nine".