22422205 has 8 divisors (see below), whose sum is σ = 28976472. Its totient is φ = 16557888.

The previous prime is 22422199. The next prime is 22422227. The reversal of 22422205 is 50222422.

It can be written as a sum of positive squares in 4 ways, for example, as 2965284 + 19456921 = 1722^2 + 4411^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22422205 - 2²³ = 14033597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 172414 + ... + 172543.

It is an arithmetic number, because the mean of its divisors is an integer number (3622059).

Almost surely, 2^22422205 is an apocalyptic number.

It is an amenable number.

22422205 is a deficient number, since it is larger than the sum of its proper divisors (6554267).

22422205 is a wasteful number, since it uses less digits than its factorization.

22422205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344975.

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 22422205 is about 4735.2090766934. The cubic root of 22422205 is about 281.9850645142.

Adding to 22422205 its reverse (50222422), we get a palindrome (72644627).

The spelling of 22422205 in words is "twenty-two million, four hundred twenty-two thousand, two hundred five".