222610643 has 2 divisors, whose sum is σ = 222610644. Its totient is φ = 222610642.

The previous prime is 222610589. The next prime is 222610651. The reversal of 222610643 is 346016222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222610643 - 2¹⁴ = 222594259 is a prime.

It is not a weakly prime, because it can be changed into another prime (222610673) 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 as a sum of consecutive naturals, namely, 111305321 + 111305322.

It is an arithmetic number, because the mean of its divisors is an integer number (111305322).

Almost surely, 2^222610643 is an apocalyptic number.

222610643 is a deficient number, since it is larger than the sum of its proper divisors (1).

222610643 is an equidigital number, since it uses as much as digits as its factorization.

222610643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 222610643 is about 14920.1421910115. The cubic root of 222610643 is about 606.0595625611.

Adding to 222610643 its reverse (346016222), we get a palindrome (568626865).

The spelling of 222610643 in words is "two hundred twenty-two million, six hundred ten thousand, six hundred forty-three".