221440433324 has 48 divisors (see below), whose sum is σ = 427973607936. Its totient is φ = 99411748800.

The previous prime is 221440433323. The next prime is 221440433363. The reversal of 221440433324 is 423334044122.

It is not an unprimeable number, because it can be changed into a prime (221440433323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15590594 + ... + 15604790.

It is an arithmetic number, because the mean of its divisors is an integer number (8916116832).

Almost surely, 2^221440433324 is an apocalyptic number.

It is an amenable number.

221440433324 is a deficient number, since it is larger than the sum of its proper divisors (206533174612).

221440433324 is a wasteful number, since it uses less digits than its factorization.

221440433324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18566 (or 18564 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 221440433324 its reverse (423334044122), we get a palindrome (644774477446).

The spelling of 221440433324 in words is "two hundred twenty-one billion, four hundred forty million, four hundred thirty-three thousand, three hundred twenty-four".