12320112020221 has 4 divisors (see below), whose sum is σ = 12320196555744. Its totient is φ = 12320027484700.

The previous prime is 12320112020191. The next prime is 12320112020269. The reversal of 12320112020221 is 12202021102321.

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 12320112020221 - 2⁷ = 12320112020093 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 (12320112026221) 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, 42048775 + ... + 42340756.

It is an arithmetic number, because the mean of its divisors is an integer number (3080049138936).

Almost surely, 2^{12320112020221} is an apocalyptic number.

It is an amenable number.

12320112020221 is a deficient number, since it is larger than the sum of its proper divisors (84535523).

12320112020221 is an equidigital number, since it uses as much as digits as its factorization.

12320112020221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84535522.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 12320112020221 its reverse (12202021102321), we get a palindrome (24522133122542).

The spelling of 12320112020221 in words is "twelve trillion, three hundred twenty billion, one hundred twelve million, twenty thousand, two hundred twenty-one".