12210120302123 has 4 divisors (see below), whose sum is σ = 12364678787040. Its totient is φ = 12055561817208.

The previous prime is 12210120302077. The next prime is 12210120302129. The reversal of 12210120302123 is 32120302101221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12210120302123 - 2¹⁴ = 12210120285739 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12210120302095 and 12210120302104.

It is not an unprimeable number, because it can be changed into a prime (12210120302129) 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, 77279242340 + ... + 77279242497.

It is an arithmetic number, because the mean of its divisors is an integer number (3091169696760).

Almost surely, 2^{12210120302123} is an apocalyptic number.

12210120302123 is a deficient number, since it is larger than the sum of its proper divisors (154558484917).

12210120302123 is an equidigital number, since it uses as much as digits as its factorization.

12210120302123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154558484916.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 12210120302123 its reverse (32120302101221), we get a palindrome (44330422403344).

The spelling of 12210120302123 in words is "twelve trillion, two hundred ten billion, one hundred twenty million, three hundred two thousand, one hundred twenty-three".