2121443024 has 20 divisors (see below), whose sum is σ = 4326627840. Its totient is φ = 1004893920.

The previous prime is 2121443021. The next prime is 2121443041. The reversal of 2121443024 is 4203441212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121443021) 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, 3488912 + ... + 3489519.

It is an arithmetic number, because the mean of its divisors is an integer number (216331392).

Almost surely, 2^2121443024 is an apocalyptic number.

It is an amenable number.

2121443024 is an abundant number, since it is smaller than the sum of its proper divisors (2205184816).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2121443024 is a wasteful number, since it uses less digits than its factorization.

2121443024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6978458 (or 6978452 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 2121443024 is about 46059.1253065014. The cubic root of 2121443024 is about 1284.9230624095.

Adding to 2121443024 its reverse (4203441212), we get a palindrome (6324884236).

The spelling of 2121443024 in words is "two billion, one hundred twenty-one million, four hundred forty-three thousand, twenty-four".