2663222321 has 4 divisors (see below), whose sum is σ = 2664415092. Its totient is φ = 2662029552.

The previous prime is 2663222293. The next prime is 2663222327. The reversal of 2663222321 is 1232223662.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2225952400 + 437269921 = 47180^2 + 20911^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2663222321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2663222327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 593030 + ... + 597503.

It is an arithmetic number, because the mean of its divisors is an integer number (666103773).

Almost surely, 2^2663222321 is an apocalyptic number.

It is an amenable number.

2663222321 is a deficient number, since it is larger than the sum of its proper divisors (1192771).

2663222321 is a wasteful number, since it uses less digits than its factorization.

2663222321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1192770.

The product of its digits is 10368, while the sum is 29.

The square root of 2663222321 is about 51606.4174400820. The cubic root of 2663222321 is about 1386.1252474882.

Adding to 2663222321 its reverse (1232223662), we get a palindrome (3895445983).

The spelling of 2663222321 in words is "two billion, six hundred sixty-three million, two hundred twenty-two thousand, three hundred twenty-one".