102322400221 has 2 divisors, whose sum is σ = 102322400222. Its totient is φ = 102322400220.

The previous prime is 102322400203. The next prime is 102322400231. The reversal of 102322400221 is 122004223201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86664883321 + 15657516900 = 294389^2 + 125130^2 .

It is a cyclic number.

It is not a de Polignac number, because 102322400221 - 2⁹ = 102322399709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102322400231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51161200110 + 51161200111.

It is an arithmetic number, because the mean of its divisors is an integer number (51161200111).

Almost surely, 2^102322400221 is an apocalyptic number.

It is an amenable number.

102322400221 is a deficient number, since it is larger than the sum of its proper divisors (1).

102322400221 is an equidigital number, since it uses as much as digits as its factorization.

102322400221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 102322400221 its reverse (122004223201), we get a palindrome (224326623422).

The spelling of 102322400221 in words is "one hundred two billion, three hundred twenty-two million, four hundred thousand, two hundred twenty-one".