220500522 has 32 divisors (see below), whose sum is σ = 534548160. Its totient is φ = 66818160.

The previous prime is 220500521. The next prime is 220500589. The reversal of 220500522 is 225005022.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 220500495 and 220500504.

It is not an unprimeable number, because it can be changed into a prime (220500521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 185013 + ... + 186200.

It is an arithmetic number, because the mean of its divisors is an integer number (16704630).

Almost surely, 2^220500522 is an apocalyptic number.

220500522 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

220500522 is an abundant number, since it is smaller than the sum of its proper divisors (314047638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220500522 is a wasteful number, since it uses less digits than its factorization.

220500522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371235 (or 371229 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 220500522 is about 14849.2599815614. The cubic root of 220500522 is about 604.1385385324.

Adding to 220500522 its reverse (225005022), we get a palindrome (445505544).

The spelling of 220500522 in words is "two hundred twenty million, five hundred thousand, five hundred twenty-two".