22042205 has 8 divisors (see below), whose sum is σ = 26476632. Its totient is φ = 17616448.

The previous prime is 22042199. The next prime is 22042213. The reversal of 22042205 is 50224022.

It can be written as a sum of positive squares in 4 ways, for example, as 17956 + 22024249 = 134^2 + 4693^2 .

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 22042205 - 2⁸ = 22041949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6839 + ... + 9531.

It is an arithmetic number, because the mean of its divisors is an integer number (3309579).

Almost surely, 2^22042205 is an apocalyptic number.

It is an amenable number.

22042205 is a deficient number, since it is larger than the sum of its proper divisors (4434427).

22042205 is a wasteful number, since it uses less digits than its factorization.

22042205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4335.

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 22042205 is about 4694.9126722443. The cubic root of 22042205 is about 280.3830005303.

Adding to 22042205 its reverse (50224022), we get a palindrome (72266227).

The spelling of 22042205 in words is "twenty-two million, forty-two thousand, two hundred five".