220505422 has 32 divisors (see below), whose sum is σ = 347072544. Its totient is φ = 104976000.

The previous prime is 220505413. The next prime is 220505437. The reversal of 220505422 is 224505022.

It is a happy number.

It is a super-2 number, since 2×220505422² = 97245282262796168, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 220505393 and 220505402.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 1218172 + ... + 1218352.

It is an arithmetic number, because the mean of its divisors is an integer number (10846017).

Almost surely, 2^220505422 is an apocalyptic number.

220505422 is a deficient number, since it is larger than the sum of its proper divisors (126567122).

220505422 is a wasteful number, since it uses less digits than its factorization.

220505422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484.

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 220505422 is about 14849.4249720317. The cubic root of 220505422 is about 604.1430135890.

It can be divided in two parts, 22050 and 5422, that added together give a palindrome (27472).

The spelling of 220505422 in words is "two hundred twenty million, five hundred five thousand, four hundred twenty-two".