4021222000321 has 2 divisors, whose sum is σ = 4021222000322. Its totient is φ = 4021222000320.

The previous prime is 4021222000303. The next prime is 4021222000333. The reversal of 4021222000321 is 1230002221204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3978273582721 + 42948417600 = 1994561^2 + 207240^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4021222000321 is a prime.

It is not a weakly prime, because it can be changed into another prime (4021222000361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2010611000160 + 2010611000161.

It is an arithmetic number, because the mean of its divisors is an integer number (2010611000161).

Almost surely, 2^{4021222000321} is an apocalyptic number.

It is an amenable number.

4021222000321 is a deficient number, since it is larger than the sum of its proper divisors (1).

4021222000321 is an equidigital number, since it uses as much as digits as its factorization.

4021222000321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 4021222000321 its reverse (1230002221204), we get a palindrome (5251224221525).

The spelling of 4021222000321 in words is "four trillion, twenty-one billion, two hundred twenty-two million, three hundred twenty-one", and thus it is an aban number.