102102122202221 has 8 divisors (see below), whose sum is σ = 102197428613280. Its totient is φ = 102006835678192.

The previous prime is 102102122202173. The next prime is 102102122202263. The reversal of 102102122202221 is 122202221201201.

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 102102122202221 - 2¹⁰ = 102102122201197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 102102122202193 and 102102122202202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102102122202271) 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, 5311166 + ... + 15245088.

It is an arithmetic number, because the mean of its divisors is an integer number (12774678576660).

Almost surely, 2^{102102122202221} is an apocalyptic number.

It is an amenable number.

102102122202221 is a deficient number, since it is larger than the sum of its proper divisors (95306411059).

102102122202221 is an equidigital number, since it uses as much as digits as its factorization.

102102122202221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9943515.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 102102122202221 its reverse (122202221201201), we get a palindrome (224304343403422).

The spelling of 102102122202221 in words is "one hundred two trillion, one hundred two billion, one hundred twenty-two million, two hundred two thousand, two hundred twenty-one".