222745667 has 4 divisors (see below), whose sum is σ = 222835536. Its totient is φ = 222655800.

The previous prime is 222745619. The next prime is 222745669. The reversal of 222745667 is 766547222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 222745667 - 2¹⁶ = 222680131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222745669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41108 + ... + 46209.

It is an arithmetic number, because the mean of its divisors is an integer number (55708884).

Almost surely, 2^222745667 is an apocalyptic number.

222745667 is a deficient number, since it is larger than the sum of its proper divisors (89869).

222745667 is an equidigital number, since it uses as much as digits as its factorization.

222745667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89868.

The product of its digits is 282240, while the sum is 41.

The square root of 222745667 is about 14924.6663949316. Note that the first 3 decimals coincide. The cubic root of 222745667 is about 606.1820724970.

The spelling of 222745667 in words is "two hundred twenty-two million, seven hundred forty-five thousand, six hundred sixty-seven".