121208025841841 has 2 divisors, whose sum is σ = 121208025841842. Its totient is φ = 121208025841840.

The previous prime is 121208025841811. The next prime is 121208025841921. The reversal of 121208025841841 is 148148520802121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90921946090000 + 30286079751841 = 9535300^2 + 5503279^2 .

It is a cyclic number.

It is not a de Polignac number, because 121208025841841 - 2¹⁴ = 121208025825457 is a prime.

It is not a weakly prime, because it can be changed into another prime (121208025841801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60604012920920 + 60604012920921.

It is an arithmetic number, because the mean of its divisors is an integer number (60604012920921).

Almost surely, 2^{121208025841841} is an apocalyptic number.

It is an amenable number.

121208025841841 is a deficient number, since it is larger than the sum of its proper divisors (1).

121208025841841 is an equidigital number, since it uses as much as digits as its factorization.

121208025841841 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 327680, while the sum is 47.

The spelling of 121208025841841 in words is "one hundred twenty-one trillion, two hundred eight billion, twenty-five million, eight hundred forty-one thousand, eight hundred forty-one".