221234230 has 32 divisors (see below), whose sum is σ = 456056064. Its totient is φ = 75694176.

The previous prime is 221234227. The next prime is 221234231. The reversal of 221234230 is 32432122.

It is a junction number, because it is equal to n+sod(n) for n = 221234198 and 221234207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221234231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33589 + ... + 39631.

It is an arithmetic number, because the mean of its divisors is an integer number (14251752).

Almost surely, 2^221234230 is an apocalyptic number.

221234230 is an abundant number, since it is smaller than the sum of its proper divisors (234821834).

221234230 is a wasteful number, since it uses less digits than its factorization.

221234230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6580.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 221234230 is about 14873.9446684462. The cubic root of 221234230 is about 604.8078801679.

Adding to 221234230 its reverse (32432122), we get a palindrome (253666352).

The spelling of 221234230 in words is "two hundred twenty-one million, two hundred thirty-four thousand, two hundred thirty".