221233410444 has 96 divisors (see below), whose sum is σ = 526762272960. Its totient is φ = 72256499712.

The previous prime is 221233410421. The next prime is 221233410449. The reversal of 221233410444 is 444014332122.

It is not an unprimeable number, because it can be changed into a prime (221233410449) 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 31 ways as a sum of consecutive naturals, for example, 49635064 + ... + 49639520.

It is an arithmetic number, because the mean of its divisors is an integer number (5487107010).

Almost surely, 2^221233410444 is an apocalyptic number.

It is an amenable number.

221233410444 is an abundant number, since it is smaller than the sum of its proper divisors (305528862516).

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

221233410444 is a wasteful number, since it uses less digits than its factorization.

221233410444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4987 (or 4985 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 221233410444 its reverse (444014332122), we get a palindrome (665247742566).

The spelling of 221233410444 in words is "two hundred twenty-one billion, two hundred thirty-three million, four hundred ten thousand, four hundred forty-four".