221982830435 has 16 divisors (see below), whose sum is σ = 296893447200. Its totient is φ = 158343169536.

The previous prime is 221982830431. The next prime is 221982830467. The reversal of 221982830435 is 534038289122.

It is a cyclic number.

It is not a de Polignac number, because 221982830435 - 2² = 221982830431 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 221982830435.

It is not an unprimeable number, because it can be changed into a prime (221982830431) 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 15 ways as a sum of consecutive naturals, for example, 68723720 + ... + 68726949.

It is an arithmetic number, because the mean of its divisors is an integer number (18555840450).

Almost surely, 2^221982830435 is an apocalyptic number.

221982830435 is a deficient number, since it is larger than the sum of its proper divisors (74910616765).

221982830435 is a wasteful number, since it uses less digits than its factorization.

221982830435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137450710.

The product of its (nonzero) digits is 829440, while the sum is 47.

The spelling of 221982830435 in words is "two hundred twenty-one billion, nine hundred eighty-two million, eight hundred thirty thousand, four hundred thirty-five".