12221044113 has 4 divisors (see below), whose sum is σ = 16294725488. Its totient is φ = 8147362740.

The previous prime is 12221044111. The next prime is 12221044123. The reversal of 12221044113 is 31144012221.

12221044113 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 12221044113 - 2¹ = 12221044111 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12221044113.

It is not an unprimeable number, because it can be changed into a prime (12221044111) 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 3 ways as a sum of consecutive naturals, for example, 2036840683 + ... + 2036840688.

It is an arithmetic number, because the mean of its divisors is an integer number (4073681372).

Almost surely, 2^12221044113 is an apocalyptic number.

It is an amenable number.

12221044113 is a deficient number, since it is larger than the sum of its proper divisors (4073681375).

12221044113 is an equidigital number, since it uses as much as digits as its factorization.

12221044113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4073681374.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 12221044113 its reverse (31144012221), we get a palindrome (43365056334).

The spelling of 12221044113 in words is "twelve billion, two hundred twenty-one million, forty-four thousand, one hundred thirteen".