21443277234412 has 24 divisors (see below), whose sum is σ = 41430384499392. Its totient is φ = 9629511133200.

The previous prime is 21443277234409. The next prime is 21443277234427.

21443277234412 is nontrivially palindromic in base 10.

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 in 7 ways as a sum of consecutive naturals, for example, 2935822914 + ... + 2935830217.

It is an arithmetic number, because the mean of its divisors is an integer number (1726266020808).

Almost surely, 2^{21443277234412} is an apocalyptic number.

21443277234412 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21443277234412 is a deficient number, since it is larger than the sum of its proper divisors (19987107264980).

21443277234412 is a wasteful number, since it uses less digits than its factorization.

21443277234412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5871653229 (or 5871653227 counting only the distinct ones).

The product of its digits is 1806336, while the sum is 46.

It can be divided in two parts, 2144327 and 7234412, that added together give a palindrome (9378739).

The spelling of 21443277234412 in words is "twenty-one trillion, four hundred forty-three billion, two hundred seventy-seven million, two hundred thirty-four thousand, four hundred twelve".