2121443312 has 10 divisors (see below), whose sum is σ = 4110296448. Its totient is φ = 1060721648.

The previous prime is 2121443287. The next prime is 2121443333. The reversal of 2121443312 is 2133441212.

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, 66295088 + ... + 66295119.

Almost surely, 2^2121443312 is an apocalyptic number.

It is an amenable number.

2121443312 is a deficient number, since it is larger than the sum of its proper divisors (1988853136).

2121443312 is a wasteful number, since it uses less digits than its factorization.

2121443312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132590215 (or 132590209 counting only the distinct ones).

The product of its digits is 1152, while the sum is 23.

The square root of 2121443312 is about 46059.1284329176. The cubic root of 2121443312 is about 1284.9231205551.

Adding to 2121443312 its reverse (2133441212), we get a palindrome (4254884524).

The spelling of 2121443312 in words is "two billion, one hundred twenty-one million, four hundred forty-three thousand, three hundred twelve".