221320010230 has 128 divisors (see below), whose sum is σ = 454325397120. Its totient is φ = 76922880000.

The previous prime is 221320010221. The next prime is 221320010231. The reversal of 221320010230 is 32010023122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221320010231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 44181966 + ... + 44186974.

It is an arithmetic number, because the mean of its divisors is an integer number (3549417165).

Almost surely, 2^221320010230 is an apocalyptic number.

221320010230 is an abundant number, since it is smaller than the sum of its proper divisors (233005386890).

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

221320010230 is a wasteful number, since it uses less digits than its factorization.

221320010230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5266.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 221320010230 its reverse (32010023122), we get a palindrome (253330033352).

The spelling of 221320010230 in words is "two hundred twenty-one billion, three hundred twenty million, ten thousand, two hundred thirty".