221441443324 has 24 divisors (see below), whose sum is σ = 390650667008. Its totient is φ = 109827310320.

The previous prime is 221441443291. The next prime is 221441443357. The reversal of 221441443324 is 423344144122.

It is an interprime number because it is at equal distance from previous prime (221441443291) and next prime (221441443357).

It is a self number, because there is not a number n which added to its sum of digits gives 221441443324.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2718817 + ... + 2799079.

Almost surely, 2^221441443324 is an apocalyptic number.

It is an amenable number.

221441443324 is a deficient number, since it is larger than the sum of its proper divisors (169209223684).

221441443324 is a wasteful number, since it uses less digits than its factorization.

221441443324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85825 (or 85823 counting only the distinct ones).

The product of its digits is 73728, while the sum is 34.

Adding to 221441443324 its reverse (423344144122), we get a palindrome (644785587446).

The spelling of 221441443324 in words is "two hundred twenty-one billion, four hundred forty-one million, four hundred forty-three thousand, three hundred twenty-four".