221063944804 has 6 divisors (see below), whose sum is σ = 386861903414. Its totient is φ = 110531972400.

The previous prime is 221063944747. The next prime is 221063944811. The reversal of 221063944804 is 408449360122.

It can be written as a sum of positive squares in only one way, i.e., 200999788900 + 20064155904 = 448330^2 + 141648^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 27632993097 + ... + 27632993104.

Almost surely, 2^221063944804 is an apocalyptic number.

It is an amenable number.

221063944804 is a deficient number, since it is larger than the sum of its proper divisors (165797958610).

221063944804 is a wasteful number, since it uses less digits than its factorization.

221063944804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55265986205 (or 55265986203 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 43.

The spelling of 221063944804 in words is "two hundred twenty-one billion, sixty-three million, nine hundred forty-four thousand, eight hundred four".