222043361 has 2 divisors, whose sum is σ = 222043362. Its totient is φ = 222043360.

The previous prime is 222043337. The next prime is 222043363. The reversal of 222043361 is 163340222.

222043361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 185368225 + 36675136 = 13615^2 + 6056^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222043361 is a prime.

Together with 222043363, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (222043363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111021680 + 111021681.

It is an arithmetic number, because the mean of its divisors is an integer number (111021681).

Almost surely, 2^222043361 is an apocalyptic number.

It is an amenable number.

222043361 is a deficient number, since it is larger than the sum of its proper divisors (1).

222043361 is an equidigital number, since it uses as much as digits as its factorization.

222043361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 222043361 is about 14901.1194545913. The cubic root of 222043361 is about 605.5443144537.

Adding to 222043361 its reverse (163340222), we get a palindrome (385383583).

The spelling of 222043361 in words is "two hundred twenty-two million, forty-three thousand, three hundred sixty-one".