101200121202091 has 2 divisors, whose sum is σ = 101200121202092. Its totient is φ = 101200121202090.

The previous prime is 101200121201987. The next prime is 101200121202133. The reversal of 101200121202091 is 190202121002101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 101200121202091 - 2³⁹ = 100650365388203 is a prime.

It is not a weakly prime, because it can be changed into another prime (101200121202491) 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, 50600060601045 + 50600060601046.

It is an arithmetic number, because the mean of its divisors is an integer number (50600060601046).

Almost surely, 2^{101200121202091} is an apocalyptic number.

101200121202091 is a deficient number, since it is larger than the sum of its proper divisors (1).

101200121202091 is an equidigital number, since it uses as much as digits as its factorization.

101200121202091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 22.

Adding to 101200121202091 its reverse (190202121002101), we get a palindrome (291402242204192).

The spelling of 101200121202091 in words is "one hundred one trillion, two hundred billion, one hundred twenty-one million, two hundred two thousand, ninety-one".