102001100322221 has 2 divisors, whose sum is σ = 102001100322222. Its totient is φ = 102001100322220.

The previous prime is 102001100322197. The next prime is 102001100322299. The reversal of 102001100322221 is 122223001100201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99451055425225 + 2550044896996 = 9972515^2 + 1596886^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102001100322221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102001100322221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102001100022221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51000550161110 + 51000550161111.

It is an arithmetic number, because the mean of its divisors is an integer number (51000550161111).

Almost surely, 2^{102001100322221} is an apocalyptic number.

It is an amenable number.

102001100322221 is a deficient number, since it is larger than the sum of its proper divisors (1).

102001100322221 is an equidigital number, since it uses as much as digits as its factorization.

102001100322221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 102001100322221 its reverse (122223001100201), we get a palindrome (224224101422422).

The spelling of 102001100322221 in words is "one hundred two trillion, one billion, one hundred million, three hundred twenty-two thousand, two hundred twenty-one".