121122001321 has 2 divisors, whose sum is σ = 121122001322. Its totient is φ = 121122001320.

The previous prime is 121122001291. The next prime is 121122001337. The reversal of 121122001321 is 123100221121.

It is an a-pointer prime, because the next prime (121122001337) can be obtained adding 121122001321 to its sum of digits (16).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 95829870096 + 25292131225 = 309564^2 + 159035^2 .

It is a cyclic number.

It is not a de Polignac number, because 121122001321 - 2¹⁵ = 121121968553 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121122001295 and 121122001304.

It is not a weakly prime, because it can be changed into another prime (121122001381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60561000660 + 60561000661.

It is an arithmetic number, because the mean of its divisors is an integer number (60561000661).

Almost surely, 2^121122001321 is an apocalyptic number.

It is an amenable number.

121122001321 is a deficient number, since it is larger than the sum of its proper divisors (1).

121122001321 is an equidigital number, since it uses as much as digits as its factorization.

121122001321 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 121122001321 its reverse (123100221121), we get a palindrome (244222222442).

The spelling of 121122001321 in words is "one hundred twenty-one billion, one hundred twenty-two million, one thousand, three hundred twenty-one".