21222110202233 has 2 divisors, whose sum is σ = 21222110202234. Its totient is φ = 21222110202232.

The previous prime is 21222110202211. The next prime is 21222110202257. The reversal of 21222110202233 is 33220201122212.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18622444129129 + 2599666073104 = 4315373^2 + 1612348^2 .

It is a cyclic number.

It is not a de Polignac number, because 21222110202233 - 2⁸ = 21222110201977 is a prime.

It is a super-3 number, since 3×21222110202233³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 21222110202199 and 21222110202208.

It is not a weakly prime, because it can be changed into another prime (21222110502233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10611055101116 + 10611055101117.

It is an arithmetic number, because the mean of its divisors is an integer number (10611055101117).

Almost surely, 2^{21222110202233} is an apocalyptic number.

It is an amenable number.

21222110202233 is a deficient number, since it is larger than the sum of its proper divisors (1).

21222110202233 is an equidigital number, since it uses as much as digits as its factorization.

21222110202233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 21222110202233 its reverse (33220201122212), we get a palindrome (54442311324445).

The spelling of 21222110202233 in words is "twenty-one trillion, two hundred twenty-two billion, one hundred ten million, two hundred two thousand, two hundred thirty-three".