102300221 has 2 divisors, whose sum is σ = 102300222. Its totient is φ = 102300220.

The previous prime is 102300193. The next prime is 102300241. The reversal of 102300221 is 122003201.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102292996 + 7225 = 10114^2 + 85^2 .

It is a cyclic number.

It is not a de Polignac number, because 102300221 - 2⁶ = 102300157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102300241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51150110 + 51150111.

It is an arithmetic number, because the mean of its divisors is an integer number (51150111).

Almost surely, 2^102300221 is an apocalyptic number.

It is an amenable number.

102300221 is a deficient number, since it is larger than the sum of its proper divisors (1).

102300221 is an equidigital number, since it uses as much as digits as its factorization.

102300221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 102300221 is about 10114.3571718622. The cubic root of 102300221 is about 467.6908327079.

Adding to 102300221 its reverse (122003201), we get a palindrome (224303422).

The spelling of 102300221 in words is "one hundred two million, three hundred thousand, two hundred twenty-one".