102221100101 has 4 divisors (see below), whose sum is σ = 102739989132. Its totient is φ = 101702211072.

The previous prime is 102221100029. The next prime is 102221100151. The reversal of 102221100101 is 101001122201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 89282037601 + 12939062500 = 298801^2 + 113750^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102221100101 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 (102221100151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 259444220 + ... + 259444613.

It is an arithmetic number, because the mean of its divisors is an integer number (25684997283).

Almost surely, 2^102221100101 is an apocalyptic number.

It is an amenable number.

102221100101 is a deficient number, since it is larger than the sum of its proper divisors (518889031).

102221100101 is an equidigital number, since it uses as much as digits as its factorization.

102221100101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518889030.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 102221100101 its reverse (101001122201), we get a palindrome (203222222302).

The spelling of 102221100101 in words is "one hundred two billion, two hundred twenty-one million, one hundred thousand, one hundred one".