21222323202133 has 2 divisors, whose sum is σ = 21222323202134. Its totient is φ = 21222323202132.

The previous prime is 21222323202109. The next prime is 21222323202151. The reversal of 21222323202133 is 33120232322212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12263597771364 + 8958725430769 = 3501942^2 + 2993113^2 .

It is a cyclic number.

It is not a de Polignac number, because 21222323202133 - 2²¹ = 21222321104981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21222323202433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10611161601066 + 10611161601067.

It is an arithmetic number, because the mean of its divisors is an integer number (10611161601067).

Almost surely, 2^{21222323202133} is an apocalyptic number.

It is an amenable number.

21222323202133 is a deficient number, since it is larger than the sum of its proper divisors (1).

21222323202133 is an equidigital number, since it uses as much as digits as its factorization.

21222323202133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 21222323202133 its reverse (33120232322212), we get a palindrome (54342555524345).

The spelling of 21222323202133 in words is "twenty-one trillion, two hundred twenty-two billion, three hundred twenty-three million, two hundred two thousand, one hundred thirty-three".