102221100221 has 8 divisors (see below), whose sum is σ = 104326391520. Its totient is φ = 100132856208.

The previous prime is 102221100199. The next prime is 102221100229. The reversal of 102221100221 is 122001122201.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102221100221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102221100196 and 102221100205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102221100229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4249706 + ... + 4273691.

It is an arithmetic number, because the mean of its divisors is an integer number (13040798940).

Almost surely, 2^102221100221 is an apocalyptic number.

It is an amenable number.

102221100221 is a deficient number, since it is larger than the sum of its proper divisors (2105291299).

102221100221 is an equidigital number, since it uses as much as digits as its factorization.

102221100221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8523643.

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

Adding to 102221100221 its reverse (122001122201), we get a palindrome (224222222422).

The spelling of 102221100221 in words is "one hundred two billion, two hundred twenty-one million, one hundred thousand, two hundred twenty-one".