12213123312223 has 16 divisors (see below), whose sum is σ = 12752764390080. Its totient is φ = 11674204033536.

The previous prime is 12213123312167. The next prime is 12213123312241. The reversal of 12213123312223 is 32221332131221.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12213123312223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12213123312191 and 12213123312200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12213123312253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 302067973 + ... + 302108401.

It is an arithmetic number, because the mean of its divisors is an integer number (797047774380).

Almost surely, 2^{12213123312223} is an apocalyptic number.

12213123312223 is a deficient number, since it is larger than the sum of its proper divisors (539641077857).

12213123312223 is a wasteful number, since it uses less digits than its factorization.

12213123312223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49026.

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

Adding to 12213123312223 its reverse (32221332131221), we get a palindrome (44434455443444).

The spelling of 12213123312223 in words is "twelve trillion, two hundred thirteen billion, one hundred twenty-three million, three hundred twelve thousand, two hundred twenty-three".