2443322121 has 16 divisors (see below), whose sum is σ = 3400669248. Its totient is φ = 1558872000.

The previous prime is 2443322107. The next prime is 2443322129. The reversal of 2443322121 is 1212233442.

It is a happy number.

It is not a de Polignac number, because 2443322121 - 2⁹ = 2443321609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2443322091 and 2443322100.

It is not an unprimeable number, because it can be changed into a prime (2443322129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173655 + ... + 187196.

It is an arithmetic number, because the mean of its divisors is an integer number (212541828).

Almost surely, 2^2443322121 is an apocalyptic number.

It is an amenable number.

2443322121 is a deficient number, since it is larger than the sum of its proper divisors (957347127).

2443322121 is a wasteful number, since it uses less digits than its factorization.

2443322121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360952.

The product of its digits is 2304, while the sum is 24.

The square root of 2443322121 is about 49429.9718895328. The cubic root of 2443322121 is about 1346.8738126586.

Adding to 2443322121 its reverse (1212233442), we get a palindrome (3655555563).

The spelling of 2443322121 in words is "two billion, four hundred forty-three million, three hundred twenty-two thousand, one hundred twenty-one".