23222666 has 8 divisors (see below), whose sum is σ = 35644224. Its totient is φ = 11341260.

The previous prime is 23222651. The next prime is 23222671. The reversal of 23222666 is 66622232.

It is a happy number.

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

It is a super-2 number, since 2×23222666² = 1078584432295112, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134930 + ... + 135101.

It is an arithmetic number, because the mean of its divisors is an integer number (4455528).

Almost surely, 2^23222666 is an apocalyptic number.

23222666 is a deficient number, since it is larger than the sum of its proper divisors (12421558).

23222666 is a wasteful number, since it uses less digits than its factorization.

23222666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270076.

The product of its digits is 10368, while the sum is 29.

The square root of 23222666 is about 4818.9901431732. The cubic root of 23222666 is about 285.3014805016.

Adding to 23222666 its reverse (66622232), we get a palindrome (89844898).

The spelling of 23222666 in words is "twenty-three million, two hundred twenty-two thousand, six hundred sixty-six".