12213123311311 has 16 divisors (see below), whose sum is σ = 13370867959680. Its totient is φ = 11086634085120.

The previous prime is 12213123311299. The next prime is 12213123311353. The reversal of 12213123311311 is 11311332131221.

It is a cyclic number.

It is not a de Polignac number, because 12213123311311 - 2⁷ = 12213123311183 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 (12213123311371) 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, 2467731 + ... + 5524123.

It is an arithmetic number, because the mean of its divisors is an integer number (835679247480).

Almost surely, 2^{12213123311311} is an apocalyptic number.

12213123311311 is a deficient number, since it is larger than the sum of its proper divisors (1157744648369).

12213123311311 is a wasteful number, since it uses less digits than its factorization.

12213123311311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3061506.

The product of its digits is 648, while the sum is 25.

Adding to 12213123311311 its reverse (11311332131221), we get a palindrome (23524455442532).

The spelling of 12213123311311 in words is "twelve trillion, two hundred thirteen billion, one hundred twenty-three million, three hundred eleven thousand, three hundred eleven".