12320120221221 has 8 divisors (see below), whose sum is σ = 16434283541920. Its totient is φ = 8209685190672.

The previous prime is 12320120221219. The next prime is 12320120221271. The reversal of 12320120221221 is 12212202102321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12320120221221 - 2¹ = 12320120221219 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 (12320120221271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 932064826 + ... + 932078043.

It is an arithmetic number, because the mean of its divisors is an integer number (2054285442740).

Almost surely, 2^{12320120221221} is an apocalyptic number.

It is an amenable number.

12320120221221 is a deficient number, since it is larger than the sum of its proper divisors (4114163320699).

12320120221221 is a wasteful number, since it uses less digits than its factorization.

12320120221221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1864145075.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 12320120221221 its reverse (12212202102321), we get a palindrome (24532322323542).

The spelling of 12320120221221 in words is "twelve trillion, three hundred twenty billion, one hundred twenty million, two hundred twenty-one thousand, two hundred twenty-one".