221315504535330 has 128 divisors (see below), whose sum is σ = 540935479203840. Its totient is φ = 57938814144000.

The previous prime is 221315504535329. The next prime is 221315504535343. The reversal of 221315504535330 is 33535405513122.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 837045691 + ... + 837310049.

It is an arithmetic number, because the mean of its divisors is an integer number (4226058431280).

Almost surely, 2^{221315504535330} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 221315504535330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (270467739601920).

221315504535330 is an abundant number, since it is smaller than the sum of its proper divisors (319619974668510).

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

221315504535330 is a wasteful number, since it uses less digits than its factorization.

221315504535330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266216.

The product of its (nonzero) digits is 810000, while the sum is 42.

The spelling of 221315504535330 in words is "two hundred twenty-one trillion, three hundred fifteen billion, five hundred four million, five hundred thirty-five thousand, three hundred thirty".