4421249321 has 2 divisors, whose sum is σ = 4421249322. Its totient is φ = 4421249320.

The previous prime is 4421249257. The next prime is 4421249369. The reversal of 4421249321 is 1239421244.

4421249321 is digitally balanced in base 3, 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., 3774259225 + 646990096 = 61435^2 + 25436^2 .

It is a cyclic number.

It is not a de Polignac number, because 4421249321 - 2⁶ = 4421249257 is a prime.

It is a super-2 number, since 2×4421249321² = 39094891116885922082, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4421239321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2210624660 + 2210624661.

It is an arithmetic number, because the mean of its divisors is an integer number (2210624661).

Almost surely, 2^4421249321 is an apocalyptic number.

It is an amenable number.

4421249321 is a deficient number, since it is larger than the sum of its proper divisors (1).

4421249321 is an equidigital number, since it uses as much as digits as its factorization.

4421249321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13824, while the sum is 32.

The square root of 4421249321 is about 66492.4756720638. The cubic root of 4421249321 is about 1641.2761880248.

The spelling of 4421249321 in words is "four billion, four hundred twenty-one million, two hundred forty-nine thousand, three hundred twenty-one".