222591233 has 2 divisors, whose sum is σ = 222591234. Its totient is φ = 222591232.

The previous prime is 222591227. The next prime is 222591277. The reversal of 222591233 is 332195222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 200987329 + 21603904 = 14177^2 + 4648^2 .

It is a cyclic number.

It is not a de Polignac number, because 222591233 - 2¹⁶ = 222525697 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222591196 and 222591205.

It is not a weakly prime, because it can be changed into another prime (222591283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111295616 + 111295617.

It is an arithmetic number, because the mean of its divisors is an integer number (111295617).

Almost surely, 2^222591233 is an apocalyptic number.

It is an amenable number.

222591233 is a deficient number, since it is larger than the sum of its proper divisors (1).

222591233 is an equidigital number, since it uses as much as digits as its factorization.

222591233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 29.

The square root of 222591233 is about 14919.4917138621. The cubic root of 222591233 is about 606.0419474135.

The spelling of 222591233 in words is "two hundred twenty-two million, five hundred ninety-one thousand, two hundred thirty-three".