21143413322 has 16 divisors (see below), whose sum is σ = 32827618440. Its totient is φ = 10201293312.

The previous prime is 21143413289. The next prime is 21143413391. The reversal of 21143413322 is 22331434112.

It can be written as a sum of positive squares in 4 ways, for example, as 9582647881 + 11560765441 = 97891^2 + 107521^2 .

It is a junction number, because it is equal to n+sod(n) for n = 21143413291 and 21143413300.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2303 + ... + 205650.

Almost surely, 2^21143413322 is an apocalyptic number.

21143413322 is a deficient number, since it is larger than the sum of its proper divisors (11684205118).

21143413322 is a wasteful number, since it uses less digits than its factorization.

21143413322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209737.

The product of its digits is 3456, while the sum is 26.

Adding to 21143413322 its reverse (22331434112), we get a palindrome (43474847434).

The spelling of 21143413322 in words is "twenty-one billion, one hundred forty-three million, four hundred thirteen thousand, three hundred twenty-two".