222221113 has 16 divisors (see below), whose sum is σ = 239016960. Its totient is φ = 206136000.

The previous prime is 222221071. The next prime is 222221137. The reversal of 222221113 is 311122222.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222221113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222221143) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 134931 + ... + 136567.

It is an arithmetic number, because the mean of its divisors is an integer number (14938560).

Almost surely, 2^222221113 is an apocalyptic number.

It is an amenable number.

222221113 is a deficient number, since it is larger than the sum of its proper divisors (16795847).

222221113 is a wasteful number, since it uses less digits than its factorization.

222221113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1848.

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

The square root of 222221113 is about 14907.0826455078. The cubic root of 222221113 is about 605.7058564804.

Adding to 222221113 its reverse (311122222), we get a palindrome (533343335).

The spelling of 222221113 in words is "two hundred twenty-two million, two hundred twenty-one thousand, one hundred thirteen".