121204122241 has 2 divisors, whose sum is σ = 121204122242. Its totient is φ = 121204122240.

The previous prime is 121204122211. The next prime is 121204122257. The reversal of 121204122241 is 142221402121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62928231025 + 58275891216 = 250855^2 + 241404^2 .

It is an emirp because it is prime and its reverse (142221402121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121204122241 - 2²⁵ = 121170567809 is a prime.

It is a super-2 number, since 2×121204122241² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121204122211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60602061120 + 60602061121.

It is an arithmetic number, because the mean of its divisors is an integer number (60602061121).

Almost surely, 2^121204122241 is an apocalyptic number.

It is an amenable number.

121204122241 is a deficient number, since it is larger than the sum of its proper divisors (1).

121204122241 is an equidigital number, since it uses as much as digits as its factorization.

121204122241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 121204122241 its reverse (142221402121), we get a palindrome (263425524362).

The spelling of 121204122241 in words is "one hundred twenty-one billion, two hundred four million, one hundred twenty-two thousand, two hundred forty-one".