22220567 has 4 divisors (see below), whose sum is σ = 22501920. Its totient is φ = 21939216.

The previous prime is 22220537. The next prime is 22220603. The reversal of 22220567 is 76502222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76502222 = 2 ⋅38251111.

It is a cyclic number.

It is not a de Polignac number, because 22220567 - 2⁶ = 22220503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22220537) 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, 140558 + ... + 140715.

It is an arithmetic number, because the mean of its divisors is an integer number (5625480).

Almost surely, 2^22220567 is an apocalyptic number.

22220567 is a deficient number, since it is larger than the sum of its proper divisors (281353).

22220567 is an equidigital number, since it uses as much as digits as its factorization.

22220567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281352.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 22220567 is about 4713.8696418123. The cubic root of 22220567 is about 281.1372412515.

Adding to 22220567 its reverse (76502222), we get a palindrome (98722789).

The spelling of 22220567 in words is "twenty-two million, two hundred twenty thousand, five hundred sixty-seven".