12440201223001 has 4 divisors (see below), whose sum is σ = 12442872518452. Its totient is φ = 12437529927552.

The previous prime is 12440201222983. The next prime is 12440201223007. The reversal of 12440201223001 is 10032210204421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3699663749401 + 8740537473600 = 1923451^2 + 2956440^2 .

It is a cyclic number.

It is not a de Polignac number, because 12440201223001 - 2³³ = 12431611288409 is a prime.

It is a super-2 number, since 2×12440201223001² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12440201223007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1335640740 + ... + 1335650053.

It is an arithmetic number, because the mean of its divisors is an integer number (3110718129613).

Almost surely, 2^{12440201223001} is an apocalyptic number.

It is an amenable number.

12440201223001 is a deficient number, since it is larger than the sum of its proper divisors (2671295451).

12440201223001 is an equidigital number, since it uses as much as digits as its factorization.

12440201223001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2671295450.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 12440201223001 its reverse (10032210204421), we get a palindrome (22472411427422).

The spelling of 12440201223001 in words is "twelve trillion, four hundred forty billion, two hundred one million, two hundred twenty-three thousand, one".