222428047 has 2 divisors, whose sum is σ = 222428048. Its totient is φ = 222428046.

The previous prime is 222428039. The next prime is 222428077. The reversal of 222428047 is 740824222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222428047 - 2³ = 222428039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222428027) 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 as a sum of consecutive naturals, namely, 111214023 + 111214024.

It is an arithmetic number, because the mean of its divisors is an integer number (111214024).

Almost surely, 2^222428047 is an apocalyptic number.

222428047 is a deficient number, since it is larger than the sum of its proper divisors (1).

222428047 is an equidigital number, since it uses as much as digits as its factorization.

222428047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14336, while the sum is 31.

The square root of 222428047 is about 14914.0218251148. The cubic root of 222428047 is about 605.8938107930.

The spelling of 222428047 in words is "two hundred twenty-two million, four hundred twenty-eight thousand, forty-seven".