102221010221 has 16 divisors (see below), whose sum is σ = 111919757568. Its totient is φ = 92590387200.

The previous prime is 102221010191. The next prime is 102221010239. The reversal of 102221010221 is 122010122201.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102221010221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102221010196 and 102221010205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102221013221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4643681 + ... + 4665641.

It is an arithmetic number, because the mean of its divisors is an integer number (6994984848).

Almost surely, 2^102221010221 is an apocalyptic number.

102221010221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

102221010221 is a deficient number, since it is larger than the sum of its proper divisors (9698747347).

102221010221 is a wasteful number, since it uses less digits than its factorization.

102221010221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23492.

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

Adding to 102221010221 its reverse (122010122201), we get a palindrome (224231132422).

The spelling of 102221010221 in words is "one hundred two billion, two hundred twenty-one million, ten thousand, two hundred twenty-one".