221110110102 has 32 divisors (see below), whose sum is σ = 507119461632. Its totient is φ = 62958701664.

The previous prime is 221110110097. The next prime is 221110110121. The reversal of 221110110102 is 201011011122.

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, 8971528 + ... + 8996139.

It is an arithmetic number, because the mean of its divisors is an integer number (15847483176).

Almost surely, 2^221110110102 is an apocalyptic number.

221110110102 is an abundant number, since it is smaller than the sum of its proper divisors (286009351530).

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

221110110102 is a wasteful number, since it uses less digits than its factorization.

221110110102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17967972.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 221110110102 its reverse (201011011122), we get a palindrome (422121121224).

The spelling of 221110110102 in words is "two hundred twenty-one billion, one hundred ten million, one hundred ten thousand, one hundred two".