12444212401 has 4 divisors (see below), whose sum is σ = 12461052400. Its totient is φ = 12427372404.

The previous prime is 12444212357. The next prime is 12444212423. The reversal of 12444212401 is 10421244421.

It is a happy number.

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 12444212401 - 2⁹ = 12444211889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12444219401) 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, 8418891 + ... + 8420368.

It is an arithmetic number, because the mean of its divisors is an integer number (3115263100).

Almost surely, 2^12444212401 is an apocalyptic number.

It is an amenable number.

12444212401 is a deficient number, since it is larger than the sum of its proper divisors (16839999).

12444212401 is an equidigital number, since it uses as much as digits as its factorization.

12444212401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16839998.

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 12444212401 its reverse (10421244421), we get a palindrome (22865456822).

The spelling of 12444212401 in words is "twelve billion, four hundred forty-four million, two hundred twelve thousand, four hundred one".