221839276232 has 36 divisors (see below), whose sum is σ = 483878965905. Its totient is φ = 95069978976.

The previous prime is 221839276223. The next prime is 221839276271. The reversal of 221839276232 is 232672938122.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

221839276232 is digitally balanced in base 2 and base 3, because in such bases 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 195606291076 + 26232985156 = 442274^2 + 161966^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=333046.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 9313394 + ... + 9337182.

Almost surely, 2^221839276232 is an apocalyptic number.

It is an amenable number.

221839276232 is an abundant number, since it is smaller than the sum of its proper divisors (262039689673).

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

221839276232 is an frugal number, since it uses more digits than its factorization.

221839276232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47598 (or 23798 counting only the distinct ones).

The product of its digits is 870912, while the sum is 47.

The spelling of 221839276232 in words is "two hundred twenty-one billion, eight hundred thirty-nine million, two hundred seventy-six thousand, two hundred thirty-two".