221102321302 has 16 divisors (see below), whose sum is σ = 332908213680. Its totient is φ = 110133055008.

The previous prime is 221102321299. The next prime is 221102321303. The reversal of 221102321302 is 203123201122.

It is a self number, because there is not a number n which added to its sum of digits gives 221102321302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221102321303) 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 7 ways as a sum of consecutive naturals, for example, 3508273 + ... + 3570739.

It is an arithmetic number, because the mean of its divisors is an integer number (20806763355).

Almost surely, 2^221102321302 is an apocalyptic number.

221102321302 is a deficient number, since it is larger than the sum of its proper divisors (111805892378).

221102321302 is a wasteful number, since it uses less digits than its factorization.

221102321302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69135.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 221102321302 its reverse (203123201122), we get a palindrome (424225522424).

The spelling of 221102321302 in words is "two hundred twenty-one billion, one hundred two million, three hundred twenty-one thousand, three hundred two".