102221110109 has 8 divisors (see below), whose sum is σ = 108283064760. Its totient is φ = 96164594176.

The previous prime is 102221110081. The next prime is 102221110127. The reversal of 102221110109 is 901011122201.

It can be written as a sum of positive squares in 4 ways, for example, as 92782987609 + 9438122500 = 304603^2 + 97150^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 102221110109 - 2¹⁶ = 102221044573 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102221110129) 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, 1320944 + ... + 1396185.

It is an arithmetic number, because the mean of its divisors is an integer number (13535383095).

Almost surely, 2^102221110109 is an apocalyptic number.

It is an amenable number.

102221110109 is a deficient number, since it is larger than the sum of its proper divisors (6061954651).

102221110109 is a wasteful number, since it uses less digits than its factorization.

102221110109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2719359.

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 102221110109 in words is "one hundred two billion, two hundred twenty-one million, one hundred ten thousand, one hundred nine".