21443034412 has 12 divisors (see below), whose sum is σ = 39156845616. Its totient is φ = 10255364240.

The previous prime is 21443034373. The next prime is 21443034443.

21443034412 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116538139 + ... + 116538322.

It is an arithmetic number, because the mean of its divisors is an integer number (3263070468).

Almost surely, 2^21443034412 is an apocalyptic number.

It is an amenable number.

21443034412 is a deficient number, since it is larger than the sum of its proper divisors (17713811204).

21443034412 is a wasteful number, since it uses less digits than its factorization.

21443034412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233076488 (or 233076486 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

It can be divided in two parts, 214430 and 34412, that added together give a palindrome (248842).

The spelling of 21443034412 in words is "twenty-one billion, four hundred forty-three million, thirty-four thousand, four hundred twelve".