5221298120256 has 189 divisors, whose sum is σ = 15798197226123. Its totient is φ = 1648501943040.

The previous prime is 5221298120149. The next prime is 5221298120261. The reversal of 5221298120256 is 6520218921225.

The square root of 5221298120256 is 2285016.

It is a perfect power (a square), and thus also a powerful number.

5221298120256 is a `hidden beast` number, since 522 + 1 + 2 + 9 + 81 + 20 + 25 + 6 = 666.

It is an unprimeable number.

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 26 ways as a sum of consecutive naturals, for example, 1041964791 + ... + 1041969801.

Almost surely, 2^{5221298120256} is an apocalyptic number.

5221298120256 is the 2285016-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5221298120256

5221298120256 is an abundant number, since it is smaller than the sum of its proper divisors (10576899105867).

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

5221298120256 is an frugal number, since it uses more digits than its factorization.

5221298120256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10078 (or 5035 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 45.

The spelling of 5221298120256 in words is "five trillion, two hundred twenty-one billion, two hundred ninety-eight million, one hundred twenty thousand, two hundred fifty-six".