221800314 has 8 divisors (see below), whose sum is σ = 443600640. Its totient is φ = 73933436.

The previous prime is 221800307. The next prime is 221800333. The reversal of 221800314 is 413008122.

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

221800314 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18483354 + ... + 18483365.

It is an arithmetic number, because the mean of its divisors is an integer number (55450080).

Almost surely, 2^221800314 is an apocalyptic number.

221800314 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

221800314 is a wasteful number, since it uses less digits than its factorization.

221800314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36966724.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 221800314 is about 14892.9618948012. The cubic root of 221800314 is about 605.3232923672.

Adding to 221800314 its reverse (413008122), we get a palindrome (634808436).

The spelling of 221800314 in words is "two hundred twenty-one million, eight hundred thousand, three hundred fourteen".