4244214121321 has 2 divisors, whose sum is σ = 4244214121322. Its totient is φ = 4244214121320.

The previous prime is 4244214121261. The next prime is 4244214121327. The reversal of 4244214121321 is 1231214124424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4194222080400 + 49992040921 = 2047980^2 + 223589^2 .

It is a cyclic number.

It is not a de Polignac number, because 4244214121321 - 2¹⁵ = 4244214088553 is a prime.

It is not a weakly prime, because it can be changed into another prime (4244214121327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2122107060660 + 2122107060661.

It is an arithmetic number, because the mean of its divisors is an integer number (2122107060661).

Almost surely, 2^{4244214121321} is an apocalyptic number.

It is an amenable number.

4244214121321 is a deficient number, since it is larger than the sum of its proper divisors (1).

4244214121321 is an equidigital number, since it uses as much as digits as its factorization.

4244214121321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12288, while the sum is 31.

Adding to 4244214121321 its reverse (1231214124424), we get a palindrome (5475428245745).

The spelling of 4244214121321 in words is "four trillion, two hundred forty-four billion, two hundred fourteen million, one hundred twenty-one thousand, three hundred twenty-one".