221100221102 has 8 divisors (see below), whose sum is σ = 331654137816. Its totient is φ = 110548841832.

The previous prime is 221100221077. The next prime is 221100221159. The reversal of 221100221102 is 201122001122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 399068 + ... + 775535.

It is an arithmetic number, because the mean of its divisors is an integer number (41456767227).

Almost surely, 2^221100221102 is an apocalyptic number.

221100221102 is a deficient number, since it is larger than the sum of its proper divisors (110553916714).

221100221102 is a wasteful number, since it uses less digits than its factorization.

221100221102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1268722.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 221100221102 its reverse (201122001122), we get a palindrome (422222222224).

The spelling of 221100221102 in words is "two hundred twenty-one billion, one hundred million, two hundred twenty-one thousand, one hundred two".