222240947 has 2 divisors, whose sum is σ = 222240948. Its totient is φ = 222240946.

The previous prime is 222240923. The next prime is 222241009. The reversal of 222240947 is 749042222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222240947 - 2¹⁸ = 221978803 is a prime.

It is not a weakly prime, because it can be changed into another prime (222240247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111120473 + 111120474.

It is an arithmetic number, because the mean of its divisors is an integer number (111120474).

Almost surely, 2^222240947 is an apocalyptic number.

222240947 is a deficient number, since it is larger than the sum of its proper divisors (1).

222240947 is an equidigital number, since it uses as much as digits as its factorization.

222240947 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 32.

The square root of 222240947 is about 14907.7478849087. The cubic root of 222240947 is about 605.7238763892.

The spelling of 222240947 in words is "two hundred twenty-two million, two hundred forty thousand, nine hundred forty-seven".