221047334802 has 126 divisors (see below), whose sum is σ = 578621970423. Its totient is φ = 63120476664.

The previous prime is 221047334789. The next prime is 221047334857. The reversal of 221047334802 is 208433740122.

It is a happy number.

221047334802 is a `hidden beast` number, since 2 + 2 + 104 + 73 + 3 + 480 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 110523667401 + 110523667401 = 332451^2 + 332451^2 .

It is a tau number, because it is divible by the number of its divisors (126).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=332451.

It is an unprimeable number.

It is a polite number, since it can be written in 62 ways as a sum of consecutive naturals, for example, 125665599 + ... + 125667357.

Almost surely, 2^221047334802 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 221047334802

221047334802 is an abundant number, since it is smaller than the sum of its proper divisors (357574635621).

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

221047334802 is an frugal number, since it uses more digits than its factorization.

221047334802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3552 (or 1771 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The spelling of 221047334802 in words is "two hundred twenty-one billion, forty-seven million, three hundred thirty-four thousand, eight hundred two".