221041140308718 has 32 divisors (see below), whose sum is σ = 442247600941440. Its totient is φ = 73652830368480.

The previous prime is 221041140308701. The next prime is 221041140308749. The reversal of 221041140308718 is 817803041140122.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 221041140308718.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 245718213 + ... + 246616143.

It is an arithmetic number, because the mean of its divisors is an integer number (13820237529420).

Almost surely, 2^{221041140308718} is an apocalyptic number.

221041140308718 is an abundant number, since it is smaller than the sum of its proper divisors (221206460632722).

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

221041140308718 is a wasteful number, since it uses less digits than its factorization.

221041140308718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913232.

The product of its (nonzero) digits is 86016, while the sum is 42.

The spelling of 221041140308718 in words is "two hundred twenty-one trillion, forty-one billion, one hundred forty million, three hundred eight thousand, seven hundred eighteen".