222404423447 has 2 divisors, whose sum is σ = 222404423448. Its totient is φ = 222404423446.

The previous prime is 222404423429. The next prime is 222404423497. The reversal of 222404423447 is 744324404222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222404423447 - 2⁸ = 222404423191 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 222404423447.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222404423497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111202211723 + 111202211724.

It is an arithmetic number, because the mean of its divisors is an integer number (111202211724).

Almost surely, 2^222404423447 is an apocalyptic number.

222404423447 is a deficient number, since it is larger than the sum of its proper divisors (1).

222404423447 is an equidigital number, since it uses as much as digits as its factorization.

222404423447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 344064, while the sum is 38.

Adding to 222404423447 its reverse (744324404222), we get a palindrome (966728827669).

The spelling of 222404423447 in words is "two hundred twenty-two billion, four hundred four million, four hundred twenty-three thousand, four hundred forty-seven".