4122001321 has 2 divisors, whose sum is σ = 4122001322. Its totient is φ = 4122001320.

The previous prime is 4122001319. The next prime is 4122001343. The reversal of 4122001321 is 1231002214.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4096640025 + 25361296 = 64005^2 + 5036^2 .

It is a cyclic number.

It is not a de Polignac number, because 4122001321 - 2¹ = 4122001319 is a prime.

Together with 4122001319, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 4122001295 and 4122001304.

It is not a weakly prime, because it can be changed into another prime (4122001421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2061000660 + 2061000661.

It is an arithmetic number, because the mean of its divisors is an integer number (2061000661).

Almost surely, 2^4122001321 is an apocalyptic number.

It is an amenable number.

4122001321 is a deficient number, since it is larger than the sum of its proper divisors (1).

4122001321 is an equidigital number, since it uses as much as digits as its factorization.

4122001321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 4122001321 is about 64202.8139648100. The cubic root of 4122001321 is about 1603.3784499483.

Adding to 4122001321 its reverse (1231002214), we get a palindrome (5353003535).

The spelling of 4122001321 in words is "four billion, one hundred twenty-two million, one thousand, three hundred twenty-one".