221213114 has 16 divisors (see below), whose sum is σ = 343180800. Its totient is φ = 106879344.

The previous prime is 221213099. The next prime is 221213123. The reversal of 221213114 is 411312122.

It is a junction number, because it is equal to n+sod(n) for n = 221213092 and 221213101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7469 + ... + 22320.

It is an arithmetic number, because the mean of its divisors is an integer number (21448800).

Almost surely, 2^221213114 is an apocalyptic number.

221213114 is a deficient number, since it is larger than the sum of its proper divisors (121967686).

221213114 is a wasteful number, since it uses less digits than its factorization.

221213114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29917.

The product of its digits is 96, while the sum is 17.

The square root of 221213114 is about 14873.2348196349. The cubic root of 221213114 is about 604.7886373206.

Adding to 221213114 its reverse (411312122), we get a palindrome (632525236).

The spelling of 221213114 in words is "two hundred twenty-one million, two hundred thirteen thousand, one hundred fourteen".