21222213130322 has 8 divisors (see below), whose sum is σ = 31833339349500. Its totient is φ = 10611100013824.

The previous prime is 21222213130289. The next prime is 21222213130337. The reversal of 21222213130322 is 22303131222212.

It can be written as a sum of positive squares in 2 ways, for example, as 21222154776001 + 58354321 = 4606751^2 + 7639^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 21222213130291 and 21222213130300.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4051454 + ... + 7671942.

Almost surely, 2^{21222213130322} is an apocalyptic number.

21222213130322 is a deficient number, since it is larger than the sum of its proper divisors (10611126219178).

21222213130322 is a wasteful number, since it uses less digits than its factorization.

21222213130322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6551340.

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

Adding to 21222213130322 its reverse (22303131222212), we get a palindrome (43525344352534).

The spelling of 21222213130322 in words is "twenty-one trillion, two hundred twenty-two billion, two hundred thirteen million, one hundred thirty thousand, three hundred twenty-two".