22022285 has 4 divisors (see below), whose sum is σ = 26426748. Its totient is φ = 17617824.

The previous prime is 22022269. The next prime is 22022291. The reversal of 22022285 is 58222022.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58222022 = 2 ⋅29111011.

It can be written as a sum of positive squares in 2 ways, for example, as 2829124 + 19193161 = 1682^2 + 4381^2 .

It is a cyclic number.

It is not a de Polignac number, because 22022285 - 2⁴ = 22022269 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22022285.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2202224 + ... + 2202233.

It is an arithmetic number, because the mean of its divisors is an integer number (6606687).

Almost surely, 2^22022285 is an apocalyptic number.

It is an amenable number.

22022285 is a deficient number, since it is larger than the sum of its proper divisors (4404463).

22022285 is an equidigital number, since it uses as much as digits as its factorization.

22022285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4404462.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 22022285 is about 4692.7907475190. The cubic root of 22022285 is about 280.2985124204.

The spelling of 22022285 in words is "twenty-two million, twenty-two thousand, two hundred eighty-five".