12230121303021 has 4 divisors (see below), whose sum is σ = 16306828404032. Its totient is φ = 8153414202012.

The previous prime is 12230121303019. The next prime is 12230121303083. The reversal of 12230121303021 is 12030312103221.

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 not a de Polignac number, because 12230121303021 - 2¹ = 12230121303019 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12230121303011) 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, 2038353550501 + ... + 2038353550506.

It is an arithmetic number, because the mean of its divisors is an integer number (4076707101008).

Almost surely, 2^{12230121303021} is an apocalyptic number.

It is an amenable number.

12230121303021 is a deficient number, since it is larger than the sum of its proper divisors (4076707101011).

12230121303021 is an equidigital number, since it uses as much as digits as its factorization.

12230121303021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4076707101010.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 12230121303021 its reverse (12030312103221), we get a palindrome (24260433406242).

The spelling of 12230121303021 in words is "twelve trillion, two hundred thirty billion, one hundred twenty-one million, three hundred three thousand, twenty-one".