121200001012201 has 2 divisors, whose sum is σ = 121200001012202. Its totient is φ = 121200001012200.

The previous prime is 121200001012193. The next prime is 121200001012247. The reversal of 121200001012201 is 102210100002121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67148846913600 + 54051154098601 = 8194440^2 + 7351949^2 .

It is a cyclic number.

It is not a de Polignac number, because 121200001012201 - 2³ = 121200001012193 is a prime.

It is not a weakly prime, because it can be changed into another prime (121200601012201) 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, 60600000506100 + 60600000506101.

It is an arithmetic number, because the mean of its divisors is an integer number (60600000506101).

Almost surely, 2^{121200001012201} is an apocalyptic number.

It is an amenable number.

121200001012201 is a deficient number, since it is larger than the sum of its proper divisors (1).

121200001012201 is an equidigital number, since it uses as much as digits as its factorization.

121200001012201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 121200001012201 its reverse (102210100002121), we get a palindrome (223410101014322).

The spelling of 121200001012201 in words is "one hundred twenty-one trillion, two hundred billion, one million, twelve thousand, two hundred one".