443222222221 has 4 divisors (see below), whose sum is σ = 443374902432. Its totient is φ = 443069542012.

The previous prime is 443222222197. The next prime is 443222222237. The reversal of 443222222221 is 122222222344.

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 a cyclic number.

It is not a de Polignac number, because 443222222221 - 2⁵ = 443222222189 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 443222222221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (443222222251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76335751 + ... + 76341556.

It is an arithmetic number, because the mean of its divisors is an integer number (110843725608).

Almost surely, 2^443222222221 is an apocalyptic number.

It is an amenable number.

443222222221 is a deficient number, since it is larger than the sum of its proper divisors (152680211).

443222222221 is a wasteful number, since it uses less digits than its factorization.

443222222221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152680210.

The product of its digits is 12288, while the sum is 28.

Adding to 443222222221 its reverse (122222222344), we get a palindrome (565444444565).

The spelling of 443222222221 in words is "four hundred forty-three billion, two hundred twenty-two million, two hundred twenty-two thousand, two hundred twenty-one".