221102221102 has 64 divisors (see below), whose sum is σ = 405779207040. Its totient is φ = 88197120000.

The previous prime is 221102221073. The next prime is 221102221121. The reversal of 221102221102 is 201122201122.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22326352 + ... + 22336252.

It is an arithmetic number, because the mean of its divisors is an integer number (6340300110).

Almost surely, 2^221102221102 is an apocalyptic number.

221102221102 is a deficient number, since it is larger than the sum of its proper divisors (184676985938).

221102221102 is a wasteful number, since it uses less digits than its factorization.

221102221102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10957.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 221102221102 its reverse (201122201122), we get a palindrome (422224422224).

The spelling of 221102221102 in words is "two hundred twenty-one billion, one hundred two million, two hundred twenty-one thousand, one hundred two".