12001222321001 has 4 divisors (see below), whose sum is σ = 12028313116752. Its totient is φ = 11974131525252.

The previous prime is 12001222320811. The next prime is 12001222321031. The reversal of 12001222321001 is 10012322210021.

12001222321001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12001222321001 - 2⁴² = 7603175809897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12001222321031) 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, 13545397211 + ... + 13545398096.

It is an arithmetic number, because the mean of its divisors is an integer number (3007078279188).

Almost surely, 2^{12001222321001} is an apocalyptic number.

It is an amenable number.

12001222321001 is a deficient number, since it is larger than the sum of its proper divisors (27090795751).

12001222321001 is an equidigital number, since it uses as much as digits as its factorization.

12001222321001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27090795750.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 12001222321001 its reverse (10012322210021), we get a palindrome (22013544531022).

The spelling of 12001222321001 in words is "twelve trillion, one billion, two hundred twenty-two million, three hundred twenty-one thousand, one".