21414344332 has 12 divisors (see below), whose sum is σ = 37614417120. Its totient is φ = 10667368016.

The previous prime is 21414344317. The next prime is 21414344333. The reversal of 21414344332 is 23344341412.

It is a junction number, because it is equal to n+sod(n) for n = 21414344294 and 21414344303.

It is not an unprimeable number, because it can be changed into a prime (21414344333) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 9949828 + ... + 9951979.

It is an arithmetic number, because the mean of its divisors is an integer number (3134534760).

Almost surely, 2^21414344332 is an apocalyptic number.

It is an amenable number.

21414344332 is a deficient number, since it is larger than the sum of its proper divisors (16200072788).

21414344332 is a wasteful number, since it uses less digits than its factorization.

21414344332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19902080 (or 19902078 counting only the distinct ones).

The product of its digits is 27648, while the sum is 31.

Adding to 21414344332 its reverse (23344341412), we get a palindrome (44758685744).

The spelling of 21414344332 in words is "twenty-one billion, four hundred fourteen million, three hundred forty-four thousand, three hundred thirty-two".