21443122134412 has 24 divisors (see below), whose sum is σ = 40937752875600. Its totient is φ = 9746663376960.

The previous prime is 21443122134361. The next prime is 21443122134461.

21443122134412 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3186583 + ... + 7282894.

It is an arithmetic number, because the mean of its divisors is an integer number (1705739703150).

Almost surely, 2^{21443122134412} is an apocalyptic number.

21443122134412 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21443122134412 is a deficient number, since it is larger than the sum of its proper divisors (19494630741188).

21443122134412 is a wasteful number, since it uses less digits than its factorization.

21443122134412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10516041 (or 10516039 counting only the distinct ones).

The product of its digits is 36864, while the sum is 34.

It can be divided in two parts, 2144312 and 2134412, that added together give a palindrome (4278724).

The spelling of 21443122134412 in words is "twenty-one trillion, four hundred forty-three billion, one hundred twenty-two million, one hundred thirty-four thousand, four hundred twelve".