220732227 has 24 divisors (see below), whose sum is σ = 326008800. Its totient is φ = 143864448.

The previous prime is 220732207. The next prime is 220732243. The reversal of 220732227 is 722237022.

It is not a de Polignac number, because 220732227 - 2¹⁸ = 220470083 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 220732227.

It is not an unprimeable number, because it can be changed into a prime (220732207) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 170599 + ... + 171887.

It is an arithmetic number, because the mean of its divisors is an integer number (13583700).

Almost surely, 2^220732227 is an apocalyptic number.

220732227 is a deficient number, since it is larger than the sum of its proper divisors (105276573).

220732227 is a wasteful number, since it uses less digits than its factorization.

220732227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1707 (or 1704 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 27.

The square root of 220732227 is about 14857.0598369933. The cubic root of 220732227 is about 604.3500768329.

Adding to 220732227 its reverse (722237022), we get a palindrome (942969249).

The spelling of 220732227 in words is "two hundred twenty million, seven hundred thirty-two thousand, two hundred twenty-seven".