222011 has 2 divisors, whose sum is σ = 222012. Its totient is φ = 222010.

The previous prime is 222007. The next prime is 222023. The reversal of 222011 is 110222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222011 - 2² = 222007 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 222011.

It is not a weakly prime, because it can be changed into another prime (222041) 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, 111005 + 111006.

It is an arithmetic number, because the mean of its divisors is an integer number (111006).

2²²²⁰¹¹ is an apocalyptic number.

222011 is a deficient number, since it is larger than the sum of its proper divisors (1).

222011 is an equidigital number, since it uses as much as digits as its factorization.

222011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 222011 is about 471.1804325309. The cubic root of 222011 is about 60.5514895318.

Adding to 222011 its reverse (110222), we get a palindrome (332233).

The spelling of 222011 in words is "two hundred twenty-two thousand, eleven", and thus it is an iban number.