522161506212 has 48 divisors (see below), whose sum is σ = 1239320678400. Its totient is φ = 171066332160.

The previous prime is 522161506199. The next prime is 522161506247. The reversal of 522161506212 is 212605161225.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 657364 + ... + 1215092.

It is an arithmetic number, because the mean of its divisors is an integer number (25819180800).

Almost surely, 2^522161506212 is an apocalyptic number.

It is an amenable number.

522161506212 is an abundant number, since it is smaller than the sum of its proper divisors (717159172188).

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

522161506212 is a wasteful number, since it uses less digits than its factorization.

522161506212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559076 (or 559074 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

Adding to 522161506212 its reverse (212605161225), we get a palindrome (734766667437).

The spelling of 522161506212 in words is "five hundred twenty-two billion, one hundred sixty-one million, five hundred six thousand, two hundred twelve".