222352643 has 2 divisors, whose sum is σ = 222352644. Its totient is φ = 222352642.

The previous prime is 222352633. The next prime is 222352679. The reversal of 222352643 is 346253222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222352643 - 2⁶ = 222352579 is a prime.

It is not a weakly prime, because it can be changed into another prime (222352633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111176321 + 111176322.

It is an arithmetic number, because the mean of its divisors is an integer number (111176322).

Almost surely, 2^222352643 is an apocalyptic number.

222352643 is a deficient number, since it is larger than the sum of its proper divisors (1).

222352643 is an equidigital number, since it uses as much as digits as its factorization.

222352643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 29.

The square root of 222352643 is about 14911.4936542253. The cubic root of 222352643 is about 605.8253362441.

The spelling of 222352643 in words is "two hundred twenty-two million, three hundred fifty-two thousand, six hundred forty-three".