102212102221 has 16 divisors (see below), whose sum is σ = 106921676160. Its totient is φ = 97584379200.

The previous prime is 102212102203. The next prime is 102212102227. The reversal of 102212102221 is 122201212201.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 102212102221 - 2¹⁷ = 102211971149 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102212102195 and 102212102204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102212102227) 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, 2015071 + ... + 2065171.

It is an arithmetic number, because the mean of its divisors is an integer number (6682604760).

Almost surely, 2^102212102221 is an apocalyptic number.

It is an amenable number.

102212102221 is a deficient number, since it is larger than the sum of its proper divisors (4709573939).

102212102221 is a wasteful number, since it uses less digits than its factorization.

102212102221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50916.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 102212102221 its reverse (122201212201), we get a palindrome (224413314422).

The spelling of 102212102221 in words is "one hundred two billion, two hundred twelve million, one hundred two thousand, two hundred twenty-one".