12116221443 has 24 divisors (see below), whose sum is σ = 18071479296. Its totient is φ = 7814444400.

The previous prime is 12116221433. The next prime is 12116221459. The reversal of 12116221443 is 34412261121.

12116221443 is a `hidden beast` number, since 1 + 21 + 1 + 622 + 14 + 4 + 3 = 666.

12116221443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12116221443 - 2¹⁸ = 12115959299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12116221423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1371346 + ... + 1380152.

It is an arithmetic number, because the mean of its divisors is an integer number (752978304).

Almost surely, 2^12116221443 is an apocalyptic number.

12116221443 is a deficient number, since it is larger than the sum of its proper divisors (5955257853).

12116221443 is a wasteful number, since it uses less digits than its factorization.

12116221443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13775 (or 13772 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

Adding to 12116221443 its reverse (34412261121), we get a palindrome (46528482564).

The spelling of 12116221443 in words is "twelve billion, one hundred sixteen million, two hundred twenty-one thousand, four hundred forty-three".