220242556 has 12 divisors (see below), whose sum is σ = 386012200. Its totient is φ = 109953360.

The previous prime is 220242527. The next prime is 220242557. The reversal of 220242556 is 655242022.

220242556 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220242557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39006 + ... + 44293.

Almost surely, 2^220242556 is an apocalyptic number.

It is an amenable number.

220242556 is a deficient number, since it is larger than the sum of its proper divisors (165769644).

220242556 is a wasteful number, since it uses less digits than its factorization.

220242556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83964 (or 83962 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 220242556 is about 14840.5712828044. The cubic root of 220242556 is about 603.9028504773.

Adding to 220242556 its reverse (655242022), we get a palindrome (875484578).

The spelling of 220242556 in words is "two hundred twenty million, two hundred forty-two thousand, five hundred fifty-six".