2443313221 has 8 divisors (see below), whose sum is σ = 2470919904. Its totient is φ = 2415795120.

The previous prime is 2443313203. The next prime is 2443313263. The reversal of 2443313221 is 1223133442.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2443313221 - 2²¹ = 2441216069 is a prime.

It is a super-4 number, since 4×2443313221⁴ (a number of 39 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2443314221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34131 + ... + 77791.

It is an arithmetic number, because the mean of its divisors is an integer number (308864988).

Almost surely, 2^2443313221 is an apocalyptic number.

It is an amenable number.

2443313221 is a deficient number, since it is larger than the sum of its proper divisors (27606683).

2443313221 is a wasteful number, since it uses less digits than its factorization.

2443313221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44291.

The product of its digits is 3456, while the sum is 25.

The square root of 2443313221 is about 49429.8818630998. The cubic root of 2443313221 is about 1346.8721772907.

Adding to 2443313221 its reverse (1223133442), we get a palindrome (3666446663).

The spelling of 2443313221 in words is "two billion, four hundred forty-three million, three hundred thirteen thousand, two hundred twenty-one".