221200244832 has 96 divisors (see below), whose sum is σ = 663684682752. Its totient is φ = 63192075264.

The previous prime is 221200244807. The next prime is 221200244833. The reversal of 221200244832 is 238442002122.

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 221200244832.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221200244833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7112388 + ... + 7143420.

It is an arithmetic number, because the mean of its divisors is an integer number (6913382112).

Almost surely, 2^221200244832 is an apocalyptic number.

It is an amenable number.

221200244832 is an abundant number, since it is smaller than the sum of its proper divisors (442484437920).

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

221200244832 is a wasteful number, since it uses less digits than its factorization.

221200244832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41660 (or 41652 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 30.

Adding to 221200244832 its reverse (238442002122), we get a palindrome (459642246954).

The spelling of 221200244832 in words is "two hundred twenty-one billion, two hundred million, two hundred forty-four thousand, eight hundred thirty-two".