221684014 has 4 divisors (see below), whose sum is σ = 332526024. Its totient is φ = 110842006.

The previous prime is 221684009. The next prime is 221684017. The reversal of 221684014 is 410486122.

221684014 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221684017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55421002 + ... + 55421005.

It is an arithmetic number, because the mean of its divisors is an integer number (83131506).

Almost surely, 2^221684014 is an apocalyptic number.

221684014 is a deficient number, since it is larger than the sum of its proper divisors (110842010).

221684014 is a wasteful number, since it uses less digits than its factorization.

221684014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110842009.

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 221684014 is about 14889.0568539448. The cubic root of 221684014 is about 605.2174743520.

The spelling of 221684014 in words is "two hundred twenty-one million, six hundred eighty-four thousand, fourteen".