121002121110197 has 2 divisors, whose sum is σ = 121002121110198. Its totient is φ = 121002121110196.

The previous prime is 121002121110161. The next prime is 121002121110251. The reversal of 121002121110197 is 791011121200121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117797355195601 + 3204765914596 = 10853449^2 + 1790186^2 .

It is a cyclic number.

It is not a de Polignac number, because 121002121110197 - 2¹⁴ = 121002121093813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121002121116197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60501060555098 + 60501060555099.

It is an arithmetic number, because the mean of its divisors is an integer number (60501060555099).

Almost surely, 2^{121002121110197} is an apocalyptic number.

It is an amenable number.

121002121110197 is a deficient number, since it is larger than the sum of its proper divisors (1).

121002121110197 is an equidigital number, since it uses as much as digits as its factorization.

121002121110197 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 29.

The spelling of 121002121110197 in words is "one hundred twenty-one trillion, two billion, one hundred twenty-one million, one hundred ten thousand, one hundred ninety-seven".