12144442001 has 16 divisors (see below), whose sum is σ = 12572964096.
Its totient is φ = 11723844096.
The previous prime is 12144441989. The next prime is 12144442007. The reversal of 12144442001 is 10024444121.
It is a cyclic number.
It is not a de Polignac number, because 12144442001 - 214 = 12144425617 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (12144442007) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1395275 + ... + 1403951.
It is an arithmetic number, because the mean of its divisors is an integer number (785810256).
Almost surely, 212144442001 is an apocalyptic number.
It is an amenable number.
12144442001 is a deficient number, since it is larger than the sum of its proper divisors (428522095).
12144442001 is an equidigital number, since it uses as much as digits as its factorization.
12144442001 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9128.
The product of its (nonzero) digits is 1024, while the sum is 23.
Adding to 12144442001 its reverse (10024444121), we get a palindrome (22168886122).
The spelling of 12144442001 in words is "twelve billion, one hundred forty-four million, four hundred forty-two thousand, one".