21443034322 has 8 divisors (see below), whose sum is σ = 32172116400. Its totient is φ = 10718995524.

The previous prime is 21443034293. The next prime is 21443034323. The reversal of 21443034322 is 22343034412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (21443034323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1250172 + ... + 1267207.

It is an arithmetic number, because the mean of its divisors is an integer number (4021514550).

Almost surely, 2^21443034322 is an apocalyptic number.

21443034322 is a deficient number, since it is larger than the sum of its proper divisors (10729082078).

21443034322 is a wasteful number, since it uses less digits than its factorization.

21443034322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2521640.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 21443034322 its reverse (22343034412), we get a palindrome (43786068734).

The spelling of 21443034322 in words is "twenty-one billion, four hundred forty-three million, thirty-four thousand, three hundred twenty-two".