2121332344 has 8 divisors (see below), whose sum is σ = 3977498160. Its totient is φ = 1060666168.

The previous prime is 2121332321. The next prime is 2121332371. The reversal of 2121332344 is 4432331212.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132583264 + ... + 132583279.

It is an arithmetic number, because the mean of its divisors is an integer number (497187270).

Almost surely, 2^2121332344 is an apocalyptic number.

It is an amenable number.

2121332344 is a deficient number, since it is larger than the sum of its proper divisors (1856165816).

2121332344 is a wasteful number, since it uses less digits than its factorization.

2121332344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265166549 (or 265166545 counting only the distinct ones).

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

The square root of 2121332344 is about 46057.9237916778. The cubic root of 2121332344 is about 1284.9007163371.

Adding to 2121332344 its reverse (4432331212), we get a palindrome (6553663556).

The spelling of 2121332344 in words is "two billion, one hundred twenty-one million, three hundred thirty-two thousand, three hundred forty-four".