12366552225 has 96 divisors (see below), whose sum is σ = 21504873600. Its totient is φ = 6265036800.

The previous prime is 12366552223. The next prime is 12366552227. The reversal of 12366552225 is 52225566321.

It is an interprime number because it is at equal distance from previous prime (12366552223) and next prime (12366552227).

It is not a de Polignac number, because 12366552225 - 2¹ = 12366552223 is a prime.

It is a super-2 number, since 2×12366552225² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12366552223) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 19977966 + ... + 19978584.

It is an arithmetic number, because the mean of its divisors is an integer number (224009100).

Almost surely, 2^12366552225 is an apocalyptic number.

12366552225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12366552225 is a deficient number, since it is larger than the sum of its proper divisors (9138321375).

12366552225 is a wasteful number, since it uses less digits than its factorization.

12366552225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 835 (or 830 counting only the distinct ones).

The product of its digits is 216000, while the sum is 39.

The spelling of 12366552225 in words is "twelve billion, three hundred sixty-six million, five hundred fifty-two thousand, two hundred twenty-five".