443323221012 has 192 divisors, whose sum is σ = 1350087639040. Its totient is φ = 123145805952.

The previous prime is 443323221001. The next prime is 443323221013. The reversal of 443323221012 is 210122323344.

443323221012 is a `hidden beast` number, since 4 + 4 + 332 + 322 + 1 + 0 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (443323221013) 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 63 ways as a sum of consecutive naturals, for example, 41477133 + ... + 41487819.

Almost surely, 2^443323221012 is an apocalyptic number.

443323221012 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 443323221012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (675043819520).

443323221012 is an abundant number, since it is smaller than the sum of its proper divisors (906764418028).

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

443323221012 is a wasteful number, since it uses less digits than its factorization.

443323221012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12227 (or 12219 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 443323221012 its reverse (210122323344), we get a palindrome (653445544356).

The spelling of 443323221012 in words is "four hundred forty-three billion, three hundred twenty-three million, two hundred twenty-one thousand, twelve".