22213315 has 4 divisors (see below), whose sum is σ = 26655984. Its totient is φ = 17770648.

The previous prime is 22213313. The next prime is 22213343. The reversal of 22213315 is 51331222.

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

It is a cyclic number.

It is not a de Polignac number, because 22213315 - 2¹ = 22213313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22213292 and 22213301.

It is not an unprimeable number, because it can be changed into a prime (22213313) 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, 2221327 + ... + 2221336.

It is an arithmetic number, because the mean of its divisors is an integer number (6663996).

Almost surely, 2^22213315 is an apocalyptic number.

22213315 is a deficient number, since it is larger than the sum of its proper divisors (4442669).

22213315 is an equidigital number, since it uses as much as digits as its factorization.

22213315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4442668.

The product of its digits is 360, while the sum is 19.

The square root of 22213315 is about 4713.1003596359. The cubic root of 22213315 is about 281.1066535365.

Adding to 22213315 its reverse (51331222), we get a palindrome (73544537).

The spelling of 22213315 in words is "twenty-two million, two hundred thirteen thousand, three hundred fifteen".