121241025197 has 2 divisors, whose sum is σ = 121241025198. Its totient is φ = 121241025196.

The previous prime is 121241025181. The next prime is 121241025253. The reversal of 121241025197 is 791520142121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76216853476 + 45024171721 = 276074^2 + 212189^2 .

It is a cyclic number.

It is not a de Polignac number, because 121241025197 - 2⁴ = 121241025181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121241025127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60620512598 + 60620512599.

It is an arithmetic number, because the mean of its divisors is an integer number (60620512599).

Almost surely, 2^121241025197 is an apocalyptic number.

It is an amenable number.

121241025197 is a deficient number, since it is larger than the sum of its proper divisors (1).

121241025197 is an equidigital number, since it uses as much as digits as its factorization.

121241025197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 35.

The spelling of 121241025197 in words is "one hundred twenty-one billion, two hundred forty-one million, twenty-five thousand, one hundred ninety-seven".