21210333322 has 32 divisors (see below), whose sum is σ = 33945912000. Its totient is φ = 9904861440.

The previous prime is 21210333317. The next prime is 21210333329. The reversal of 21210333322 is 22333301212.

It is a junction number, because it is equal to n+sod(n) for n = 21210333293 and 21210333302.

It is not an unprimeable number, because it can be changed into a prime (21210333329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3067393 + ... + 3074299.

It is an arithmetic number, because the mean of its divisors is an integer number (1060809750).

Almost surely, 2^21210333322 is an apocalyptic number.

21210333322 is a deficient number, since it is larger than the sum of its proper divisors (12735578678).

21210333322 is a wasteful number, since it uses less digits than its factorization.

21210333322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7606.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 21210333322 its reverse (22333301212), we get a palindrome (43543634534).

The spelling of 21210333322 in words is "twenty-one billion, two hundred ten million, three hundred thirty-three thousand, three hundred twenty-two".