220322266 has 4 divisors (see below), whose sum is σ = 330483402. Its totient is φ = 110161132.

The previous prime is 220322243. The next prime is 220322269. The reversal of 220322266 is 662223022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 165251025 + 55071241 = 12855^2 + 7421^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 220322266.

It is not an unprimeable number, because it can be changed into a prime (220322269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55080565 + ... + 55080568.

Almost surely, 2^220322266 is an apocalyptic number.

220322266 is a deficient number, since it is larger than the sum of its proper divisors (110161136).

220322266 is a wasteful number, since it uses less digits than its factorization.

220322266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110161135.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 220322266 is about 14843.2565833782. The cubic root of 220322266 is about 603.9756963599.

Adding to 220322266 its reverse (662223022), we get a palindrome (882545288).

The spelling of 220322266 in words is "two hundred twenty million, three hundred twenty-two thousand, two hundred sixty-six".