101221201110097 has 2 divisors, whose sum is σ = 101221201110098. Its totient is φ = 101221201110096.

The previous prime is 101221201109933. The next prime is 101221201110221. The reversal of 101221201110097 is 790011102122101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99885013074001 + 1336188036096 = 9994249^2 + 1155936^2 .

It is an emirp because it is prime and its reverse (790011102122101) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101221201110097 is a prime.

It is not a weakly prime, because it can be changed into another prime (101221201110797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50610600555048 + 50610600555049.

It is an arithmetic number, because the mean of its divisors is an integer number (50610600555049).

Almost surely, 2^{101221201110097} is an apocalyptic number.

It is an amenable number.

101221201110097 is a deficient number, since it is larger than the sum of its proper divisors (1).

101221201110097 is an equidigital number, since it uses as much as digits as its factorization.

101221201110097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 28.

Adding to 101221201110097 its reverse (790011102122101), we get a palindrome (891232303232198).

The spelling of 101221201110097 in words is "one hundred one trillion, two hundred twenty-one billion, two hundred one million, one hundred ten thousand, ninety-seven".