30222113 has 4 divisors (see below), whose sum is σ = 30389268. Its totient is φ = 30054960.

The previous prime is 30222109. The next prime is 30222131. The reversal of 30222113 is 31122203.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3265249 + 26956864 = 1807^2 + 5192^2 .

It is a cyclic number.

It is not a de Polignac number, because 30222113 - 2² = 30222109 is a prime.

It is a super-2 number, since 2×30222113² = 1826752228369538, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30222133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83306 + ... + 83667.

It is an arithmetic number, because the mean of its divisors is an integer number (7597317).

Almost surely, 2^30222113 is an apocalyptic number.

It is an amenable number.

30222113 is a deficient number, since it is larger than the sum of its proper divisors (167155).

30222113 is a wasteful number, since it uses less digits than its factorization.

30222113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167154.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 30222113 is about 5497.4642336263. The cubic root of 30222113 is about 311.4882066530.

Adding to 30222113 its reverse (31122203), we get a palindrome (61344316).

The spelling of 30222113 in words is "thirty million, two hundred twenty-two thousand, one hundred thirteen".