12045202265 has 4 divisors (see below), whose sum is σ = 14454242724. Its totient is φ = 9636161808.

The previous prime is 12045202249. The next prime is 12045202319. The reversal of 12045202265 is 56220254021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2644736329 + 9400465936 = 51427^2 + 96956^2 .

It is a cyclic number.

It is not a de Polignac number, because 12045202265 - 2⁴ = 12045202249 is a prime.

It is a super-2 number, since 2×12045202265² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1204520222 + ... + 1204520231.

It is an arithmetic number, because the mean of its divisors is an integer number (3613560681).

Almost surely, 2^12045202265 is an apocalyptic number.

It is an amenable number.

12045202265 is a deficient number, since it is larger than the sum of its proper divisors (2409040459).

12045202265 is an equidigital number, since it uses as much as digits as its factorization.

12045202265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2409040458.

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 12045202265 its reverse (56220254021), we get a palindrome (68265456286).

The spelling of 12045202265 in words is "twelve billion, forty-five million, two hundred two thousand, two hundred sixty-five".