220443922 has 8 divisors (see below), whose sum is σ = 334381500. Its totient is φ = 108983424.

The previous prime is 220443901. The next prime is 220443931. The reversal of 220443922 is 229344022.

It can be written as a sum of positive squares in 2 ways, for example, as 217887121 + 2556801 = 14761^2 + 1599^2 .

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

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 3 ways as a sum of consecutive naturals, for example, 619047 + ... + 619402.

Almost surely, 2^220443922 is an apocalyptic number.

220443922 is a deficient number, since it is larger than the sum of its proper divisors (113937578).

220443922 is a wasteful number, since it uses less digits than its factorization.

220443922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238540.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 220443922 is about 14847.3540403669. The cubic root of 220443922 is about 604.0868422566.

Adding to 220443922 its reverse (229344022), we get a palindrome (449787944).

The spelling of 220443922 in words is "two hundred twenty million, four hundred forty-three thousand, nine hundred twenty-two".