12220323311 has 16 divisors (see below), whose sum is σ = 14531227200. Its totient is φ = 10054883328.

The previous prime is 12220323293. The next prime is 12220323317. The reversal of 12220323311 is 11332302221.

It is not a de Polignac number, because 12220323311 - 2¹⁰ = 12220322287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220323317) 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, 138866 + ... + 209103.

It is an arithmetic number, because the mean of its divisors is an integer number (908201700).

Almost surely, 2^12220323311 is an apocalyptic number.

12220323311 is a deficient number, since it is larger than the sum of its proper divisors (2310903889).

12220323311 is a wasteful number, since it uses less digits than its factorization.

12220323311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348178.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 12220323311 its reverse (11332302221), we get a palindrome (23552625532).

The spelling of 12220323311 in words is "twelve billion, two hundred twenty million, three hundred twenty-three thousand, three hundred eleven".