4121224031321 has 2 divisors, whose sum is σ = 4121224031322. Its totient is φ = 4121224031320.

The previous prime is 4121224031257. The next prime is 4121224031333. The reversal of 4121224031321 is 1231304221214.

It is a happy number.

4121224031321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2269433783296 + 1851790248025 = 1506464^2 + 1360805^2 .

It is a cyclic number.

It is not a de Polignac number, because 4121224031321 - 2⁶ = 4121224031257 is a prime.

It is not a weakly prime, because it can be changed into another prime (4121224031381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2060612015660 + 2060612015661.

It is an arithmetic number, because the mean of its divisors is an integer number (2060612015661).

Almost surely, 2^{4121224031321} is an apocalyptic number.

It is an amenable number.

4121224031321 is a deficient number, since it is larger than the sum of its proper divisors (1).

4121224031321 is an equidigital number, since it uses as much as digits as its factorization.

4121224031321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 4121224031321 its reverse (1231304221214), we get a palindrome (5352528252535).

The spelling of 4121224031321 in words is "four trillion, one hundred twenty-one billion, two hundred twenty-four million, thirty-one thousand, three hundred twenty-one".