222444049 has 2 divisors, whose sum is σ = 222444050. Its totient is φ = 222444048.

The previous prime is 222444043. The next prime is 222444071. The reversal of 222444049 is 940444222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 219780625 + 2663424 = 14825^2 + 1632^2 .

It is a cyclic number.

It is not a de Polignac number, because 222444049 - 2⁹ = 222443537 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 222444049.

It is not a weakly prime, because it can be changed into another prime (222444043) 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, 111222024 + 111222025.

It is an arithmetic number, because the mean of its divisors is an integer number (111222025).

Almost surely, 2^222444049 is an apocalyptic number.

It is an amenable number.

222444049 is a deficient number, since it is larger than the sum of its proper divisors (1).

222444049 is an equidigital number, since it uses as much as digits as its factorization.

222444049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18432, while the sum is 31.

The square root of 222444049 is about 14914.5582904758. The cubic root of 222444049 is about 605.9083402561.

The spelling of 222444049 in words is "two hundred twenty-two million, four hundred forty-four thousand, forty-nine".