12214431445 has 16 divisors (see below), whose sum is σ = 14713593840. Its totient is φ = 9734091264.

The previous prime is 12214431443. The next prime is 12214431461. The reversal of 12214431445 is 54413441221.

It is a happy number.

12214431445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 1714125604 + 10500305841 = 41402^2 + 102471^2 .

It is a cyclic number.

It is not a de Polignac number, because 12214431445 - 2¹ = 12214431443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12214431443) 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 15 ways as a sum of consecutive naturals, for example, 1856121 + ... + 1862689.

It is an arithmetic number, because the mean of its divisors is an integer number (919599615).

Almost surely, 2^12214431445 is an apocalyptic number.

It is an amenable number.

12214431445 is a deficient number, since it is larger than the sum of its proper divisors (2499162395).

12214431445 is an equidigital number, since it uses as much as digits as its factorization.

12214431445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7944.

The product of its digits is 15360, while the sum is 31.

Adding to 12214431445 its reverse (54413441221), we get a palindrome (66627872666).

The spelling of 12214431445 in words is "twelve billion, two hundred fourteen million, four hundred thirty-one thousand, four hundred forty-five".