220118427 has 6 divisors (see below), whose sum is σ = 317948852. Its totient is φ = 146745612.

The previous prime is 220118417. The next prime is 220118429. The reversal of 220118427 is 724811022.

220118427 is a `hidden beast` number, since 220 + 1 + 18 + 427 = 666.

It is not a de Polignac number, because 220118427 - 2¹⁸ = 219856283 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 220118427.

It is not an unprimeable number, because it can be changed into a prime (220118429) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12228793 + ... + 12228810.

Almost surely, 2^220118427 is an apocalyptic number.

220118427 is a deficient number, since it is larger than the sum of its proper divisors (97830425).

220118427 is a wasteful number, since it uses less digits than its factorization.

220118427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24457609 (or 24457606 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 220118427 is about 14836.3886104402. The cubic root of 220118427 is about 603.7893756709.

Adding to 220118427 its reverse (724811022), we get a palindrome (944929449).

The spelling of 220118427 in words is "two hundred twenty million, one hundred eighteen thousand, four hundred twenty-seven".