21333213221322 has 32 divisors (see below), whose sum is σ = 43905662870400. Its totient is φ = 6905286842688.

The previous prime is 21333213221297. The next prime is 21333213221339. The reversal of 21333213221322 is 22312231233312.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 21333213221322.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94283422 + ... + 94509417.

It is an arithmetic number, because the mean of its divisors is an integer number (1372051964700).

Almost surely, 2^{21333213221322} is an apocalyptic number.

21333213221322 is an abundant number, since it is smaller than the sum of its proper divisors (22572449649078).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21333213221322 is a wasteful number, since it uses less digits than its factorization.

21333213221322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188793390.

The product of its digits is 15552, while the sum is 30.

Adding to 21333213221322 its reverse (22312231233312), we get a palindrome (43645444454634).

The spelling of 21333213221322 in words is "twenty-one trillion, three hundred thirty-three billion, two hundred thirteen million, two hundred twenty-one thousand, three hundred twenty-two".