222123133 has 2 divisors, whose sum is σ = 222123134. Its totient is φ = 222123132.

The previous prime is 222123131. The next prime is 222123137. The reversal of 222123133 is 331321222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 149157369 + 72965764 = 12213^2 + 8542^2 .

It is a cyclic number.

It is not a de Polignac number, because 222123133 - 2¹ = 222123131 is a prime.

Together with 222123131, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 222123133.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222123131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111061566 + 111061567.

It is an arithmetic number, because the mean of its divisors is an integer number (111061567).

Almost surely, 2^222123133 is an apocalyptic number.

It is an amenable number.

222123133 is a deficient number, since it is larger than the sum of its proper divisors (1).

222123133 is an equidigital number, since it uses as much as digits as its factorization.

222123133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432, while the sum is 19.

The square root of 222123133 is about 14903.7959258707. The cubic root of 222123133 is about 605.6168223597.

Adding to 222123133 its reverse (331321222), we get a palindrome (553444355).

The spelling of 222123133 in words is "two hundred twenty-two million, one hundred twenty-three thousand, one hundred thirty-three".