22331266 has 8 divisors (see below), whose sum is σ = 33804540. Its totient is φ = 11063088.

The previous prime is 22331263. The next prime is 22331269. The reversal of 22331266 is 66213322.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22331263) and next prime (22331269).

It can be written as a sum of positive squares in 2 ways, for example, as 18740241 + 3591025 = 4329^2 + 1895^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 22331266.

It is not an unprimeable number, because it can be changed into a prime (22331263) 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, 51001 + ... + 51436.

Almost surely, 2^22331266 is an apocalyptic number.

22331266 is a deficient number, since it is larger than the sum of its proper divisors (11473274).

22331266 is a wasteful number, since it uses less digits than its factorization.

22331266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102548.

The product of its digits is 2592, while the sum is 25.

The square root of 22331266 is about 4725.5968935151. The cubic root of 22331266 is about 281.6033270661.

Adding to 22331266 its reverse (66213322), we get a palindrome (88544588).

The spelling of 22331266 in words is "twenty-two million, three hundred thirty-one thousand, two hundred sixty-six".