221344133230 has 32 divisors (see below), whose sum is σ = 448660021248. Its totient is φ = 77892362400.

The previous prime is 221344133177. The next prime is 221344133273. The reversal of 221344133230 is 32331443122.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32451742 + ... + 32458561.

It is an arithmetic number, because the mean of its divisors is an integer number (14020625664).

Almost surely, 2^221344133230 is an apocalyptic number.

221344133230 is an abundant number, since it is smaller than the sum of its proper divisors (227315888018).

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

221344133230 is a wasteful number, since it uses less digits than its factorization.

221344133230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64910352.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 221344133230 its reverse (32331443122), we get a palindrome (253675576352).

The spelling of 221344133230 in words is "two hundred twenty-one billion, three hundred forty-four million, one hundred thirty-three thousand, two hundred thirty".