522221120 has 56 divisors (see below), whose sum is σ = 1247387904. Its totient is φ = 208242176.

The previous prime is 522221107. The next prime is 522221159. The reversal of 522221120 is 21122225.

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, 108689 + ... + 113391.

It is an arithmetic number, because the mean of its divisors is an integer number (22274784).

Almost surely, 2^522221120 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 522221120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (623693952).

522221120 is an abundant number, since it is smaller than the sum of its proper divisors (725166784).

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

522221120 is a wasteful number, since it uses less digits than its factorization.

522221120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5067 (or 5057 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 522221120 is about 22852.1578849788. The cubic root of 522221120 is about 805.2884631619.

Adding to 522221120 its reverse (21122225), we get a palindrome (543343345).

The spelling of 522221120 in words is "five hundred twenty-two million, two hundred twenty-one thousand, one hundred twenty".