221301214 has 4 divisors (see below), whose sum is σ = 331951824. Its totient is φ = 110650606.

The previous prime is 221301209. The next prime is 221301251. The reversal of 221301214 is 412103122.

221301214 is digitally balanced in base 3, 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 an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55325302 + ... + 55325305.

It is an arithmetic number, because the mean of its divisors is an integer number (82987956).

Almost surely, 2^221301214 is an apocalyptic number.

221301214 is a deficient number, since it is larger than the sum of its proper divisors (110650610).

221301214 is a wasteful number, since it uses less digits than its factorization.

221301214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110650609.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 221301214 is about 14876.1962208086. The cubic root of 221301214 is about 604.8689140670.

Adding to 221301214 its reverse (412103122), we get a palindrome (633404336).

The spelling of 221301214 in words is "two hundred twenty-one million, three hundred one thousand, two hundred fourteen".