4423221012 has 24 divisors (see below), whose sum is σ = 11795256256. Its totient is φ = 1263777408.

The previous prime is 4423220983. The next prime is 4423221017. The reversal of 4423221012 is 2101223244.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 4423221012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4423221017) 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 7 ways as a sum of consecutive naturals, for example, 26328613 + ... + 26328780.

Almost surely, 2^4423221012 is an apocalyptic number.

4423221012 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

4423221012 is an abundant number, since it is smaller than the sum of its proper divisors (7372035244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4423221012 is a wasteful number, since it uses less digits than its factorization.

4423221012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52657407 (or 52657405 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 4423221012 is about 66507.3004413801. The cubic root of 4423221012 is about 1641.5201317852.

Adding to 4423221012 its reverse (2101223244), we get a palindrome (6524444256).

The spelling of 4423221012 in words is "four billion, four hundred twenty-three million, two hundred twenty-one thousand, twelve".