221300234 has 8 divisors (see below), whose sum is σ = 332164800. Its totient is φ = 110578636.

The previous prime is 221300221. The next prime is 221300243. The reversal of 221300234 is 432003122.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31784 + ... + 38115.

It is an arithmetic number, because the mean of its divisors is an integer number (41520600).

Almost surely, 2^221300234 is an apocalyptic number.

221300234 is a deficient number, since it is larger than the sum of its proper divisors (110864566).

221300234 is a wasteful number, since it uses less digits than its factorization.

221300234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71484.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 221300234 is about 14876.1632822445. The cubic root of 221300234 is about 604.8680212079.

Adding to 221300234 its reverse (432003122), we get a palindrome (653303356).

The spelling of 221300234 in words is "two hundred twenty-one million, three hundred thousand, two hundred thirty-four".