102200330231221 has 2 divisors, whose sum is σ = 102200330231222. Its totient is φ = 102200330231220.

The previous prime is 102200330231203. The next prime is 102200330231257. The reversal of 102200330231221 is 122132033002201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93374148780900 + 8826181450321 = 9663030^2 + 2970889^2 .

It is a cyclic number.

It is not a de Polignac number, because 102200330231221 - 2⁹ = 102200330230709 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102200330231192 and 102200330231201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102200330231821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51100165115610 + 51100165115611.

It is an arithmetic number, because the mean of its divisors is an integer number (51100165115611).

Almost surely, 2^{102200330231221} is an apocalyptic number.

It is an amenable number.

102200330231221 is a deficient number, since it is larger than the sum of its proper divisors (1).

102200330231221 is an equidigital number, since it uses as much as digits as its factorization.

102200330231221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 102200330231221 its reverse (122132033002201), we get a palindrome (224332363233422).

The spelling of 102200330231221 in words is "one hundred two trillion, two hundred billion, three hundred thirty million, two hundred thirty-one thousand, two hundred twenty-one".