12321360022021 has 4 divisors (see below), whose sum is σ = 12325904974944. Its totient is φ = 12316815069100.

The previous prime is 12321360022019. The next prime is 12321360022043. The reversal of 12321360022021 is 12022006312321.

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 12321360022021 - 2¹ = 12321360022019 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 (12321360029021) 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, 2272472395 + ... + 2272477816.

It is an arithmetic number, because the mean of its divisors is an integer number (3081476243736).

Almost surely, 2^{12321360022021} is an apocalyptic number.

It is an amenable number.

12321360022021 is a deficient number, since it is larger than the sum of its proper divisors (4544952923).

12321360022021 is an equidigital number, since it uses as much as digits as its factorization.

12321360022021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4544952922.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 12321360022021 its reverse (12022006312321), we get a palindrome (24343366334342).

The spelling of 12321360022021 in words is "twelve trillion, three hundred twenty-one billion, three hundred sixty million, twenty-two thousand, twenty-one".