222009847 has 2 divisors, whose sum is σ = 222009848. Its totient is φ = 222009846.

The previous prime is 222009841. The next prime is 222009883. The reversal of 222009847 is 748900222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222009847 - 2¹⁹ = 221485559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222009841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111004923 + 111004924.

It is an arithmetic number, because the mean of its divisors is an integer number (111004924).

Almost surely, 2^222009847 is an apocalyptic number.

222009847 is a deficient number, since it is larger than the sum of its proper divisors (1).

222009847 is an equidigital number, since it uses as much as digits as its factorization.

222009847 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 222009847 is about 14899.9948657709. The cubic root of 222009847 is about 605.5138470814.

The spelling of 222009847 in words is "two hundred twenty-two million, nine thousand, eight hundred forty-seven".