221066314 has 16 divisors (see below), whose sum is σ = 380880000. Its totient is φ = 94265424.

The previous prime is 221066309. The next prime is 221066323. The reversal of 221066314 is 413660122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36889 + ... + 42460.

It is an arithmetic number, because the mean of its divisors is an integer number (23805000).

Almost surely, 2^221066314 is an apocalyptic number.

221066314 is a deficient number, since it is larger than the sum of its proper divisors (159813686).

221066314 is a wasteful number, since it uses less digits than its factorization.

221066314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79557.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 221066314 is about 14868.2989612127. The cubic root of 221066314 is about 604.6548257564.

The spelling of 221066314 in words is "two hundred twenty-one million, sixty-six thousand, three hundred fourteen".