221403314 has 16 divisors (see below), whose sum is σ = 381365280. Its totient is φ = 95340960.

The previous prime is 221403311. The next prime is 221403317. The reversal of 221403314 is 413304122.

221403314 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (221403311) and next prime (221403317).

It is not an unprimeable number, because it can be changed into a prime (221403311) by changing a digit.

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, 264419 + ... + 265254.

It is an arithmetic number, because the mean of its divisors is an integer number (23835330).

Almost surely, 2^221403314 is an apocalyptic number.

221403314 is a deficient number, since it is larger than the sum of its proper divisors (159961966).

221403314 is a wasteful number, since it uses less digits than its factorization.

221403314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529705.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 221403314 is about 14879.6274818962. The cubic root of 221403314 is about 604.9619209692.

Adding to 221403314 its reverse (413304122), we get a palindrome (634707436).

The spelling of 221403314 in words is "two hundred twenty-one million, four hundred three thousand, three hundred fourteen".