221200202011984 has 20 divisors (see below), whose sum is σ = 461542729198516. Its totient is φ = 102092400928512.

The previous prime is 221200202011979. The next prime is 221200202012029. The reversal of 221200202011984 is 489110202002122.

221200202011984 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 112461189171984 + 108739012840000 = 10604772^2 + 10427800^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 531731254629 + ... + 531731255044.

Almost surely, 2^{221200202011984} is an apocalyptic number.

It is an amenable number.

221200202011984 is an abundant number, since it is smaller than the sum of its proper divisors (240342527186532).

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

221200202011984 is a wasteful number, since it uses less digits than its factorization.

221200202011984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1063462509694 (or 1063462509688 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 34.

The spelling of 221200202011984 in words is "two hundred twenty-one trillion, two hundred billion, two hundred two million, eleven thousand, nine hundred eighty-four".