221333230 has 8 divisors (see below), whose sum is σ = 398399832. Its totient is φ = 88533288.

The previous prime is 221333219. The next prime is 221333237. The reversal of 221333230 is 32333122.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 221333198 and 221333207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221333237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11066652 + ... + 11066671.

It is an arithmetic number, because the mean of its divisors is an integer number (49799979).

Almost surely, 2^221333230 is an apocalyptic number.

221333230 is a deficient number, since it is larger than the sum of its proper divisors (177066602).

221333230 is a wasteful number, since it uses less digits than its factorization.

221333230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22133330.

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 221333230 is about 14877.2722634225. The cubic root of 221333230 is about 604.8980817777.

Adding to 221333230 its reverse (32333122), we get a palindrome (253666352).

The spelling of 221333230 in words is "two hundred twenty-one million, three hundred thirty-three thousand, two hundred thirty".