221322232230 has 64 divisors (see below), whose sum is σ = 585199178496. Its totient is φ = 53122640000.

The previous prime is 221322232217. The next prime is 221322232231. The reversal of 221322232230 is 32232223122.

221322232230 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 is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 221322232230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221322232231) 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 31 ways as a sum of consecutive naturals, for example, 3286836 + ... + 3353495.

It is an arithmetic number, because the mean of its divisors is an integer number (9143737164).

Almost surely, 2^221322232230 is an apocalyptic number.

221322232230 is an abundant number, since it is smaller than the sum of its proper divisors (363876946266).

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

221322232230 is a wasteful number, since it uses less digits than its factorization.

221322232230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6640453.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 221322232230 its reverse (32232223122), we get a palindrome (253554455352).

The spelling of 221322232230 in words is "two hundred twenty-one billion, three hundred twenty-two million, two hundred thirty-two thousand, two hundred thirty".