102202100221 has 8 divisors (see below), whose sum is σ = 110067829760. Its totient is φ = 94336946352.

The previous prime is 102202100213. The next prime is 102202100243. The reversal of 102202100221 is 122001202201.

It is a happy number.

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 102202100221 - 2³ = 102202100213 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102202100201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 268636 + ... + 525898.

It is an arithmetic number, because the mean of its divisors is an integer number (13758478720).

Almost surely, 2^102202100221 is an apocalyptic number.

It is an amenable number.

102202100221 is a deficient number, since it is larger than the sum of its proper divisors (7865729539).

102202100221 is a wasteful number, since it uses less digits than its factorization.

102202100221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287835.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 102202100221 its reverse (122001202201), we get a palindrome (224203302422).

The spelling of 102202100221 in words is "one hundred two billion, two hundred two million, one hundred thousand, two hundred twenty-one".