222211243 has 4 divisors (see below), whose sum is σ = 222245968. Its totient is φ = 222176520.

The previous prime is 222211201. The next prime is 222211247. The reversal of 222211243 is 342112222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 222211243 - 2¹⁷ = 222080171 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 222211243.

It is not an unprimeable number, because it can be changed into a prime (222211247) 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 in 3 ways as a sum of consecutive naturals, for example, 4671 + ... + 21592.

It is an arithmetic number, because the mean of its divisors is an integer number (55561492).

Almost surely, 2^222211243 is an apocalyptic number.

222211243 is a deficient number, since it is larger than the sum of its proper divisors (34725).

222211243 is an equidigital number, since it uses as much as digits as its factorization.

222211243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34724.

The product of its digits is 384, while the sum is 19.

The square root of 222211243 is about 14906.7515911415. The cubic root of 222211243 is about 605.6968888277.

Adding to 222211243 its reverse (342112222), we get a palindrome (564323465).

The spelling of 222211243 in words is "two hundred twenty-two million, two hundred eleven thousand, two hundred forty-three".