12043315220225 has 12 divisors (see below), whose sum is σ = 15138282257196. Its totient is φ = 9502670638080.

The previous prime is 12043315220221. The next prime is 12043315220227. The reversal of 12043315220225 is 52202251334021.

It can be written as a sum of positive squares in 6 ways, for example, as 439325049856 + 11603990170369 = 662816^2 + 3406463^2 .

It is not a de Polignac number, because 12043315220225 - 2² = 12043315220221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12043315220191 and 12043315220200.

It is not an unprimeable number, because it can be changed into a prime (12043315220221) 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 in 11 ways as a sum of consecutive naturals, for example, 3299536592 + ... + 3299540241.

It is an arithmetic number, because the mean of its divisors is an integer number (1261523521433).

Almost surely, 2^{12043315220225} is an apocalyptic number.

It is an amenable number.

12043315220225 is a deficient number, since it is larger than the sum of its proper divisors (3094967036971).

12043315220225 is an equidigital number, since it uses as much as digits as its factorization.

12043315220225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6599076916 (or 6599076911 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 12043315220225 its reverse (52202251334021), we get a palindrome (64245566554246).

The spelling of 12043315220225 in words is "twelve trillion, forty-three billion, three hundred fifteen million, two hundred twenty thousand, two hundred twenty-five".