121012102222201 has 2 divisors, whose sum is σ = 121012102222202. Its totient is φ = 121012102222200.

The previous prime is 121012102222171. The next prime is 121012102222213. The reversal of 121012102222201 is 102222201210121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110402092417600 + 10610009804601 = 10507240^2 + 3257301^2 .

It is an emirp because it is prime and its reverse (102222201210121) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121012102222201 is a prime.

It is not a weakly prime, because it can be changed into another prime (121012102922201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60506051111100 + 60506051111101.

It is an arithmetic number, because the mean of its divisors is an integer number (60506051111101).

Almost surely, 2^{121012102222201} is an apocalyptic number.

It is an amenable number.

121012102222201 is a deficient number, since it is larger than the sum of its proper divisors (1).

121012102222201 is an equidigital number, since it uses as much as digits as its factorization.

121012102222201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 121012102222201 its reverse (102222201210121), we get a palindrome (223234303432322).

The spelling of 121012102222201 in words is "one hundred twenty-one trillion, twelve billion, one hundred two million, two hundred twenty-two thousand, two hundred one".