522213120 has 432 divisors, whose sum is σ = 2129373792. Its totient is φ = 116490240.

The previous prime is 522213101. The next prime is 522213151. The reversal of 522213120 is 21312225.

522213120 is a `hidden beast` number, since 522 + 21 + 3 + 120 = 666.

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 = 522213093 and 522213102.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 1647202 + ... + 1647518.

It is an arithmetic number, because the mean of its divisors is an integer number (4929106).

Almost surely, 2^522213120 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 522213120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1064686896).

522213120 is an abundant number, since it is smaller than the sum of its proper divisors (1607160672).

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

522213120 is a wasteful number, since it uses less digits than its factorization.

522213120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368 (or 351 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 522213120 is about 22851.9828461339. The cubic root of 522213120 is about 805.2843510209.

Adding to 522213120 its reverse (21312225), we get a palindrome (543525345).

The spelling of 522213120 in words is "five hundred twenty-two million, two hundred thirteen thousand, one hundred twenty".