221302214 has 16 divisors (see below), whose sum is σ = 379680000. Its totient is φ = 94767624.

The previous prime is 221302187. The next prime is 221302223. The reversal of 221302214 is 412203122.

221302214 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 221302192 and 221302201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13937 + ... + 25235.

It is an arithmetic number, because the mean of its divisors is an integer number (23730000).

Almost surely, 2^221302214 is an apocalyptic number.

221302214 is a deficient number, since it is larger than the sum of its proper divisors (158377786).

221302214 is a wasteful number, since it uses less digits than its factorization.

221302214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12707.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 221302214 is about 14876.2298315131. The cubic root of 221302214 is about 604.8698251450.

Adding to 221302214 its reverse (412203122), we get a palindrome (633505336).

The spelling of 221302214 in words is "two hundred twenty-one million, three hundred two thousand, two hundred fourteen".