12213312231223 has 4 divisors (see below), whose sum is σ = 12221717815768. Its totient is φ = 12204906646680.

The previous prime is 12213312231221. The next prime is 12213312231229. The reversal of 12213312231223 is 32213221331221.

12213312231223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12213312231223 - 2¹ = 12213312231221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12213312231191 and 12213312231200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12213312231221) 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, 4202790093 + ... + 4202792998.

It is an arithmetic number, because the mean of its divisors is an integer number (3055429453942).

Almost surely, 2^{12213312231223} is an apocalyptic number.

12213312231223 is a deficient number, since it is larger than the sum of its proper divisors (8405584545).

12213312231223 is an equidigital number, since it uses as much as digits as its factorization.

12213312231223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8405584544.

The product of its digits is 5184, while the sum is 28.

Adding to 12213312231223 its reverse (32213221331221), we get a palindrome (44426533562444).

The spelling of 12213312231223 in words is "twelve trillion, two hundred thirteen billion, three hundred twelve million, two hundred thirty-one thousand, two hundred twenty-three".