21222330322233 has 4 divisors (see below), whose sum is σ = 28296440429648. Its totient is φ = 14148220214820.

The previous prime is 21222330322211. The next prime is 21222330322247. The reversal of 21222330322233 is 33222303322212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 21222330322233 - 2²⁶ = 21222263213369 is a prime.

It is a super-2 number, since 2×21222330322233² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21222330322233.

It is not an unprimeable number, because it can be changed into a prime (21222330322033) 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, 3537055053703 + ... + 3537055053708.

It is an arithmetic number, because the mean of its divisors is an integer number (7074110107412).

Almost surely, 2^{21222330322233} is an apocalyptic number.

It is an amenable number.

21222330322233 is a deficient number, since it is larger than the sum of its proper divisors (7074110107415).

21222330322233 is an equidigital number, since it uses as much as digits as its factorization.

21222330322233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7074110107414.

The product of its (nonzero) digits is 31104, while the sum is 30.

Adding to 21222330322233 its reverse (33222303322212), we get a palindrome (54444633644445).

The spelling of 21222330322233 in words is "twenty-one trillion, two hundred twenty-two billion, three hundred thirty million, three hundred twenty-two thousand, two hundred thirty-three".