443242221129 has 12 divisors (see below), whose sum is σ = 640286235316. Its totient is φ = 295472904192.

The previous prime is 443242221119. The next prime is 443242221251. The reversal of 443242221129 is 921122242344.

443242221129 is a `hidden beast` number, since 4 + 432 + 4 + 2 + 2 + 211 + 2 + 9 = 666.

443242221129 is digitally balanced in base 4, 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 2 ways, for example, as 340122240000 + 103119981129 = 583200^2 + 321123^2 .

It is not a de Polignac number, because 443242221129 - 2⁸ = 443242220873 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 443242221093 and 443242221102.

It is not an unprimeable number, because it can be changed into a prime (443242221119) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1697224 + ... + 1940889.

Almost surely, 2^443242221129 is an apocalyptic number.

It is an amenable number.

443242221129 is a deficient number, since it is larger than the sum of its proper divisors (197044014187).

443242221129 is a wasteful number, since it uses less digits than its factorization.

443242221129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3651656 (or 3651653 counting only the distinct ones).

The product of its digits is 55296, while the sum is 36.

The spelling of 443242221129 in words is "four hundred forty-three billion, two hundred forty-two million, two hundred twenty-one thousand, one hundred twenty-nine".