221444230232 has 8 divisors (see below), whose sum is σ = 415207931700. Its totient is φ = 110722115112.

The previous prime is 221444230223. The next prime is 221444230237. The reversal of 221444230232 is 232032444122.

221444230232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 221444230195 and 221444230204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221444230237) 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 as a sum of consecutive naturals, namely, 13840264382 + ... + 13840264397.

Almost surely, 2^221444230232 is an apocalyptic number.

It is an amenable number.

221444230232 is a deficient number, since it is larger than the sum of its proper divisors (193763701468).

221444230232 is a wasteful number, since it uses less digits than its factorization.

221444230232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27680528785 (or 27680528781 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 221444230232 its reverse (232032444122), we get a palindrome (453476674354).

The spelling of 221444230232 in words is "two hundred twenty-one billion, four hundred forty-four million, two hundred thirty thousand, two hundred thirty-two".