222640367 has 2 divisors, whose sum is σ = 222640368. Its totient is φ = 222640366.

The previous prime is 222640351. The next prime is 222640387. The reversal of 222640367 is 763046222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222640367 - 2⁴ = 222640351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222640387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111320183 + 111320184.

It is an arithmetic number, because the mean of its divisors is an integer number (111320184).

Almost surely, 2^222640367 is an apocalyptic number.

222640367 is a deficient number, since it is larger than the sum of its proper divisors (1).

222640367 is an equidigital number, since it uses as much as digits as its factorization.

222640367 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 32.

The square root of 222640367 is about 14921.1382608700. The cubic root of 222640367 is about 606.0865359835.

Adding to 222640367 its reverse (763046222), we get a palindrome (985686589).

The spelling of 222640367 in words is "two hundred twenty-two million, six hundred forty thousand, three hundred sixty-seven".