221434024444 has 6 divisors (see below), whose sum is σ = 387509542784. Its totient is φ = 110717012220.

The previous prime is 221434024439. The next prime is 221434024447. The reversal of 221434024444 is 444420434122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221434024447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27679253052 + ... + 27679253059.

Almost surely, 2^221434024444 is an apocalyptic number.

It is an amenable number.

221434024444 is a deficient number, since it is larger than the sum of its proper divisors (166075518340).

221434024444 is a wasteful number, since it uses less digits than its factorization.

221434024444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55358506115 (or 55358506113 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 34.

Adding to 221434024444 its reverse (444420434122), we get a palindrome (665854458566).

The spelling of 221434024444 in words is "two hundred twenty-one billion, four hundred thirty-four million, twenty-four thousand, four hundred forty-four".