4403002343221 has 2 divisors, whose sum is σ = 4403002343222. Its totient is φ = 4403002343220.

The previous prime is 4403002343219. The next prime is 4403002343231. The reversal of 4403002343221 is 1223432003044.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3073846991121 + 1329155352100 = 1753239^2 + 1152890^2 .

It is a cyclic number.

It is not a de Polignac number, because 4403002343221 - 2¹ = 4403002343219 is a prime.

Together with 4403002343219, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 4403002343221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4403002343231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2201501171610 + 2201501171611.

It is an arithmetic number, because the mean of its divisors is an integer number (2201501171611).

Almost surely, 2^{4403002343221} is an apocalyptic number.

It is an amenable number.

4403002343221 is a deficient number, since it is larger than the sum of its proper divisors (1).

4403002343221 is an equidigital number, since it uses as much as digits as its factorization.

4403002343221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 4403002343221 its reverse (1223432003044), we get a palindrome (5626434346265).

The spelling of 4403002343221 in words is "four trillion, four hundred three billion, two million, three hundred forty-three thousand, two hundred twenty-one".