522215561142 has 96 divisors (see below), whose sum is σ = 1261076304384. Its totient is φ = 154820433600.

The previous prime is 522215561113. The next prime is 522215561143. The reversal of 522215561142 is 241165512225.

522215561142 is a `hidden beast` number, since 5 + 2 + 22 + 15 + 5 + 611 + 4 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 522215561097 and 522215561106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522215561143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 28011048 + ... + 28029684.

It is an arithmetic number, because the mean of its divisors is an integer number (13136211504).

Almost surely, 2^522215561142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 522215561142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (630538152192).

522215561142 is an abundant number, since it is smaller than the sum of its proper divisors (738860743242).

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

522215561142 is a wasteful number, since it uses less digits than its factorization.

522215561142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21714 (or 21711 counting only the distinct ones).

The product of its digits is 48000, while the sum is 36.

The spelling of 522215561142 in words is "five hundred twenty-two billion, two hundred fifteen million, five hundred sixty-one thousand, one hundred forty-two".