102210200221 has 2 divisors, whose sum is σ = 102210200222. Its totient is φ = 102210200220.

The previous prime is 102210200219. The next prime is 102210200249. The reversal of 102210200221 is 122002012201.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101834383225 + 375816996 = 319115^2 + 19386^2 .

It is a cyclic number.

It is not a de Polignac number, because 102210200221 - 2¹ = 102210200219 is a prime.

Together with 102210200219, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102210200251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51105100110 + 51105100111.

It is an arithmetic number, because the mean of its divisors is an integer number (51105100111).

Almost surely, 2^102210200221 is an apocalyptic number.

It is an amenable number.

102210200221 is a deficient number, since it is larger than the sum of its proper divisors (1).

102210200221 is an equidigital number, since it uses as much as digits as its factorization.

102210200221 is an odious number, because the sum of its binary digits is odd.

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

Adding to 102210200221 its reverse (122002012201), we get a palindrome (224212212422).

The spelling of 102210200221 in words is "one hundred two billion, two hundred ten million, two hundred thousand, two hundred twenty-one".