220005124 has 24 divisors (see below), whose sum is σ = 390269880. Its totient is φ = 108509184.

The previous prime is 220005119. The next prime is 220005131. The reversal of 220005124 is 421500022.

It can be written as a sum of positive squares in 4 ways, for example, as 3385600 + 216619524 = 1840^2 + 14718^2 .

It is a junction number, because it is equal to n+sod(n) for n = 220005098 and 220005107.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104272 + ... + 106360.

It is an arithmetic number, because the mean of its divisors is an integer number (16261245).

Almost surely, 2^220005124 is an apocalyptic number.

It is an amenable number.

220005124 is a deficient number, since it is larger than the sum of its proper divisors (170264756).

220005124 is a wasteful number, since it uses less digits than its factorization.

220005124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2439 (or 2437 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 220005124 is about 14832.5697031903. The cubic root of 220005124 is about 603.6857604037.

Adding to 220005124 its reverse (421500022), we get a palindrome (641505146).

The spelling of 220005124 in words is "two hundred twenty million, five thousand, one hundred twenty-four".