220522312 has 16 divisors (see below), whose sum is σ = 413740800. Its totient is φ = 110191440.

The previous prime is 220522307. The next prime is 220522319. The reversal of 220522312 is 213225022.

It is a self number, because there is not a number n which added to its sum of digits gives 220522312.

It is not an unprimeable number, because it can be changed into a prime (220522319) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 6237 + ... + 21907.

It is an arithmetic number, because the mean of its divisors is an integer number (25858800).

Almost surely, 2^220522312 is an apocalyptic number.

It is an amenable number.

220522312 is a deficient number, since it is larger than the sum of its proper divisors (193218488).

220522312 is a wasteful number, since it uses less digits than its factorization.

220522312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17436 (or 17432 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 220522312 is about 14849.9936700323. The cubic root of 220522312 is about 604.1584383268.

Adding to 220522312 its reverse (213225022), we get a palindrome (433747334).

The spelling of 220522312 in words is "two hundred twenty million, five hundred twenty-two thousand, three hundred twelve".