102301230221 has 2 divisors, whose sum is σ = 102301230222. Its totient is φ = 102301230220.

The previous prime is 102301230217. The next prime is 102301230277. The reversal of 102301230221 is 122032103201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66763324996 + 35537905225 = 258386^2 + 188515^2 .

It is a cyclic number.

It is not a de Polignac number, because 102301230221 - 2² = 102301230217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102301230221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102301230281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51150615110 + 51150615111.

It is an arithmetic number, because the mean of its divisors is an integer number (51150615111).

Almost surely, 2^102301230221 is an apocalyptic number.

It is an amenable number.

102301230221 is a deficient number, since it is larger than the sum of its proper divisors (1).

102301230221 is an equidigital number, since it uses as much as digits as its factorization.

102301230221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 102301230221 its reverse (122032103201), we get a palindrome (224333333422).

The spelling of 102301230221 in words is "one hundred two billion, three hundred one million, two hundred thirty thousand, two hundred twenty-one".