221032313232 has 80 divisors (see below), whose sum is σ = 575617562880. Its totient is φ = 73084032000.

The previous prime is 221032313207. The next prime is 221032313233. The reversal of 221032313232 is 232313230122.

221032313232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (221032313233) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2941732 + ... + 3015932.

It is an arithmetic number, because the mean of its divisors is an integer number (7195219536).

Almost surely, 2^221032313232 is an apocalyptic number.

It is an amenable number.

221032313232 is an abundant number, since it is smaller than the sum of its proper divisors (354585249648).

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

221032313232 is a wasteful number, since it uses less digits than its factorization.

221032313232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74712 (or 74706 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 221032313232 its reverse (232313230122), we get a palindrome (453345543354).

The spelling of 221032313232 in words is "two hundred twenty-one billion, thirty-two million, three hundred thirteen thousand, two hundred thirty-two".