222466109 has 2 divisors, whose sum is σ = 222466110. Its totient is φ = 222466108.

The previous prime is 222466099. The next prime is 222466147. The reversal of 222466109 is 901664222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 214183225 + 8282884 = 14635^2 + 2878^2 .

It is a cyclic number.

It is not a de Polignac number, because 222466109 - 2⁸ = 222465853 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222466609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111233054 + 111233055.

It is an arithmetic number, because the mean of its divisors is an integer number (111233055).

Almost surely, 2^222466109 is an apocalyptic number.

It is an amenable number.

222466109 is a deficient number, since it is larger than the sum of its proper divisors (1).

222466109 is an equidigital number, since it uses as much as digits as its factorization.

222466109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 222466109 is about 14915.2978180122. The cubic root of 222466109 is about 605.9283691071.

The spelling of 222466109 in words is "two hundred twenty-two million, four hundred sixty-six thousand, one hundred nine".