22220113 has 2 divisors, whose sum is σ = 22220114. Its totient is φ = 22220112.

The previous prime is 22220083. The next prime is 22220117. The reversal of 22220113 is 31102222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22212369 + 7744 = 4713^2 + 88^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22220113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22220093 and 22220102.

It is not a weakly prime, because it can be changed into another prime (22220117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11110056 + 11110057.

It is an arithmetic number, because the mean of its divisors is an integer number (11110057).

Almost surely, 2^22220113 is an apocalyptic number.

It is an amenable number.

22220113 is a deficient number, since it is larger than the sum of its proper divisors (1).

22220113 is an equidigital number, since it uses as much as digits as its factorization.

22220113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 22220113 is about 4713.8214858011. The cubic root of 22220113 is about 281.1353265512.

Adding to 22220113 its reverse (31102222), we get a palindrome (53322335).

The spelling of 22220113 in words is "twenty-two million, two hundred twenty thousand, one hundred thirteen".