12303122101221 has 128 divisors (see below), whose sum is σ = 20277348728832. Its totient is φ = 6480891648000.

The previous prime is 12303122101201. The next prime is 12303122101429. The reversal of 12303122101221 is 12210122130321.

It is not a de Polignac number, because 12303122101221 - 2¹⁸ = 12303121839077 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12303122101201) 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 127 ways as a sum of consecutive naturals, for example, 4880253441 + ... + 4880255961.

It is an arithmetic number, because the mean of its divisors is an integer number (158416786944).

Almost surely, 2^{12303122101221} is an apocalyptic number.

It is an amenable number.

12303122101221 is a deficient number, since it is larger than the sum of its proper divisors (7974226627611).

12303122101221 is a wasteful number, since it uses less digits than its factorization.

12303122101221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3803.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 12303122101221 its reverse (12210122130321), we get a palindrome (24513244231542).

The spelling of 12303122101221 in words is "twelve trillion, three hundred three billion, one hundred twenty-two million, one hundred one thousand, two hundred twenty-one".