121320121201 has 2 divisors, whose sum is σ = 121320121202. Its totient is φ = 121320121200.

The previous prime is 121320121133. The next prime is 121320121211. The reversal of 121320121201 is 102121023121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68948256400 + 52371864801 = 262580^2 + 228849^2 .

It is a cyclic number.

It is not a de Polignac number, because 121320121201 - 2⁹ = 121320120689 is a prime.

It is not a weakly prime, because it can be changed into another prime (121320121211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60660060600 + 60660060601.

It is an arithmetic number, because the mean of its divisors is an integer number (60660060601).

Almost surely, 2^121320121201 is an apocalyptic number.

It is an amenable number.

121320121201 is a deficient number, since it is larger than the sum of its proper divisors (1).

121320121201 is an equidigital number, since it uses as much as digits as its factorization.

121320121201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 121320121201 its reverse (102121023121), we get a palindrome (223441144322).

The spelling of 121320121201 in words is "one hundred twenty-one billion, three hundred twenty million, one hundred twenty-one thousand, two hundred one".