12003122333021 has 4 divisors (see below), whose sum is σ = 12003163993692. Its totient is φ = 12003080672352.

The previous prime is 12003122332969. The next prime is 12003122333029. The reversal of 12003122333021 is 12033322130021.

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 4798461110521 + 7204661222500 = 2190539^2 + 2684150^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12003122333021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12003122333029) 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, 20395130 + ... + 20975403.

It is an arithmetic number, because the mean of its divisors is an integer number (3000790998423).

Almost surely, 2^{12003122333021} is an apocalyptic number.

It is an amenable number.

12003122333021 is a deficient number, since it is larger than the sum of its proper divisors (41660671).

12003122333021 is an equidigital number, since it uses as much as digits as its factorization.

12003122333021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41660670.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 12003122333021 its reverse (12033322130021), we get a palindrome (24036444463042).

The spelling of 12003122333021 in words is "twelve trillion, three billion, one hundred twenty-two million, three hundred thirty-three thousand, twenty-one".