121311224200321 has 2 divisors, whose sum is σ = 121311224200322. Its totient is φ = 121311224200320.

The previous prime is 121311224200297. The next prime is 121311224200373. The reversal of 121311224200321 is 123002422113121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114425381120400 + 6885843079921 = 10696980^2 + 2624089^2 .

It is a cyclic number.

It is not a de Polignac number, because 121311224200321 - 2¹⁷ = 121311224069249 is a prime.

It is not a weakly prime, because it can be changed into another prime (121311224204321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60655612100160 + 60655612100161.

It is an arithmetic number, because the mean of its divisors is an integer number (60655612100161).

Almost surely, 2^{121311224200321} is an apocalyptic number.

It is an amenable number.

121311224200321 is a deficient number, since it is larger than the sum of its proper divisors (1).

121311224200321 is an equidigital number, since it uses as much as digits as its factorization.

121311224200321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 121311224200321 its reverse (123002422113121), we get a palindrome (244313646313442).

The spelling of 121311224200321 in words is "one hundred twenty-one trillion, three hundred eleven billion, two hundred twenty-four million, two hundred thousand, three hundred twenty-one".