121124202421121 has 2 divisors, whose sum is σ = 121124202421122. Its totient is φ = 121124202421120.

The previous prime is 121124202421087. The next prime is 121124202421151.

121124202421121 is nontrivially palindromic in base 10.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117543781581121 + 3580420840000 = 10841761^2 + 1892200^2 .

It is a palprime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121124202421121 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (121124202421151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60562101210560 + 60562101210561.

It is an arithmetic number, because the mean of its divisors is an integer number (60562101210561).

Almost surely, 2^{121124202421121} is an apocalyptic number.

It is an amenable number.

121124202421121 is a deficient number, since it is larger than the sum of its proper divisors (1).

121124202421121 is an equidigital number, since it uses as much as digits as its factorization.

121124202421121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1024, while the sum is 26.

It can be divided in two parts, 12112420 and 2421121, that added together give a palindrome (14533541).

The spelling of 121124202421121 in words is "one hundred twenty-one trillion, one hundred twenty-four billion, two hundred two million, four hundred twenty-one thousand, one hundred twenty-one".