221535202016513 has 12 divisors (see below), whose sum is σ = 278292154600320. Its totient is φ = 172624832739480.

The previous prime is 221535202016501. The next prime is 221535202016563. The reversal of 221535202016513 is 315610202535122.

It is not a de Polignac number, because 221535202016513 - 2¹² = 221535202012417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221535202016563) 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 11 ways as a sum of consecutive naturals, for example, 130776387593 + ... + 130776389286.

It is an arithmetic number, because the mean of its divisors is an integer number (23191012883360).

Almost surely, 2^{221535202016513} is an apocalyptic number.

It is an amenable number.

221535202016513 is a deficient number, since it is larger than the sum of its proper divisors (56756952583807).

221535202016513 is a wasteful number, since it uses less digits than its factorization.

221535202016513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261552776908 (or 261552776897 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 38.

The spelling of 221535202016513 in words is "two hundred twenty-one trillion, five hundred thirty-five billion, two hundred two million, sixteen thousand, five hundred thirteen".