12444544201 has 4 divisors (see below), whose sum is σ = 12444911632. Its totient is φ = 12444176772.

The previous prime is 12444544163. The next prime is 12444544237. The reversal of 12444544201 is 10244544421.

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.

It is a cyclic number.

It is not a de Polignac number, because 12444544201 - 2²¹ = 12442447049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12444544291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127095 + ... + 202588.

It is an arithmetic number, because the mean of its divisors is an integer number (3111227908).

Almost surely, 2^12444544201 is an apocalyptic number.

It is an amenable number.

12444544201 is a deficient number, since it is larger than the sum of its proper divisors (367431).

12444544201 is an equidigital number, since it uses as much as digits as its factorization.

12444544201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367430.

The product of its (nonzero) digits is 20480, while the sum is 31.

The spelling of 12444544201 in words is "twelve billion, four hundred forty-four million, five hundred forty-four thousand, two hundred one".