30221113 has 4 divisors (see below), whose sum is σ = 32545828. Its totient is φ = 27896400.

The previous prime is 30221101. The next prime is 30221117. The reversal of 30221113 is 31112203.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31112203 = 251 ⋅123953.

It can be written as a sum of positive squares in 2 ways, for example, as 3564544 + 26656569 = 1888^2 + 5163^2 .

It is a cyclic number.

It is not a de Polignac number, because 30221113 - 2¹³ = 30212921 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 2324701 = 30221113 / (3 + 0 + 2 + 2 + 1 + 1 + 1 + 3).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30221093 and 30221102.

It is not an unprimeable number, because it can be changed into a prime (30221117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1162338 + ... + 1162363.

It is an arithmetic number, because the mean of its divisors is an integer number (8136457).

Almost surely, 2^30221113 is an apocalyptic number.

It is an amenable number.

30221113 is a deficient number, since it is larger than the sum of its proper divisors (2324715).

30221113 is a wasteful number, since it uses less digits than its factorization.

30221113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2324714.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 30221113 is about 5497.3732818502. The cubic root of 30221113 is about 311.4847710710.

Adding to 30221113 its reverse (31112203), we get a palindrome (61333316).

The spelling of 30221113 in words is "thirty million, two hundred twenty-one thousand, one hundred thirteen".