121202120120197 has 2 divisors, whose sum is σ = 121202120120198. Its totient is φ = 121202120120196.

The previous prime is 121202120120161. The next prime is 121202120120201. The reversal of 121202120120197 is 791021021202121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109847147678401 + 11354972441796 = 10480799^2 + 3369714^2 .

It is an emirp because it is prime and its reverse (791021021202121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121202120120197 - 2⁷ = 121202120120069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121202120120117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60601060060098 + 60601060060099.

It is an arithmetic number, because the mean of its divisors is an integer number (60601060060099).

Almost surely, 2^{121202120120197} is an apocalyptic number.

It is an amenable number.

121202120120197 is a deficient number, since it is larger than the sum of its proper divisors (1).

121202120120197 is an equidigital number, since it uses as much as digits as its factorization.

121202120120197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 31.

The spelling of 121202120120197 in words is "one hundred twenty-one trillion, two hundred two billion, one hundred twenty million, one hundred twenty thousand, one hundred ninety-seven".