221056268716 has 12 divisors (see below), whose sum is σ = 388319378832. Its totient is φ = 110107874768.

The previous prime is 221056268711. The next prime is 221056268729. The reversal of 221056268716 is 617862650122.

It is not an unprimeable number, because it can be changed into a prime (221056268711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105063715 + ... + 105065818.

It is an arithmetic number, because the mean of its divisors is an integer number (32359948236).

Almost surely, 2^221056268716 is an apocalyptic number.

It is an amenable number.

221056268716 is a deficient number, since it is larger than the sum of its proper divisors (167263110116).

221056268716 is a wasteful number, since it uses less digits than its factorization.

221056268716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210129800 (or 210129798 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 46.

The spelling of 221056268716 in words is "two hundred twenty-one billion, fifty-six million, two hundred sixty-eight thousand, seven hundred sixteen".