522240313252221 has 12 divisors (see below), whose sum is σ = 770397057847872. Its totient is φ = 340752544816776.

The previous prime is 522240313252193. The next prime is 522240313252223. The reversal of 522240313252221 is 122252313042225.

522240313252221 is a `hidden beast` number, since 5 + 2 + 2 + 2 + 403 + 1 + 3 + 25 + 2 + 221 = 666.

It is not a de Polignac number, because 522240313252221 - 2¹⁹ = 522240312727933 is a prime.

It is a super-2 number, since 2×522240313252221² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522240313252223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 617305334391 + ... + 617305335236.

It is an arithmetic number, because the mean of its divisors is an integer number (64199754820656).

Almost surely, 2^{522240313252221} is an apocalyptic number.

It is an amenable number.

522240313252221 is a deficient number, since it is larger than the sum of its proper divisors (248156744595651).

522240313252221 is a wasteful number, since it uses less digits than its factorization.

522240313252221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1234610669680 (or 1234610669677 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

Adding to 522240313252221 its reverse (122252313042225), we get a palindrome (644492626294446).

The spelling of 522240313252221 in words is "five hundred twenty-two trillion, two hundred forty billion, three hundred thirteen million, two hundred fifty-two thousand, two hundred twenty-one".