12225564401 has 4 divisors (see below), whose sum is σ = 12226460400. Its totient is φ = 12224668404.

The previous prime is 12225564361. The next prime is 12225564419. The reversal of 12225564401 is 10446552221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10446552221 = 7 ⋅1492364603.

It is a cyclic number.

It is not a de Polignac number, because 12225564401 - 2¹⁴ = 12225548017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12225564451) 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 3 ways as a sum of consecutive naturals, for example, 427211 + ... + 454928.

It is an arithmetic number, because the mean of its divisors is an integer number (3056615100).

Almost surely, 2^12225564401 is an apocalyptic number.

It is an amenable number.

12225564401 is a deficient number, since it is larger than the sum of its proper divisors (895999).

12225564401 is an equidigital number, since it uses as much as digits as its factorization.

12225564401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895998.

The product of its (nonzero) digits is 19200, while the sum is 32.

The spelling of 12225564401 in words is "twelve billion, two hundred twenty-five million, five hundred sixty-four thousand, four hundred one".