222111331009 has 2 divisors, whose sum is σ = 222111331010. Its totient is φ = 222111331008.

The previous prime is 222111331003. The next prime is 222111331073. The reversal of 222111331009 is 900133111222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 160518018609 + 61593312400 = 400647^2 + 248180^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222111331009 is a prime.

It is not a weakly prime, because it can be changed into another prime (222111331003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111055665504 + 111055665505.

It is an arithmetic number, because the mean of its divisors is an integer number (111055665505).

Almost surely, 2^222111331009 is an apocalyptic number.

It is an amenable number.

222111331009 is a deficient number, since it is larger than the sum of its proper divisors (1).

222111331009 is an equidigital number, since it uses as much as digits as its factorization.

222111331009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 25.

The spelling of 222111331009 in words is "two hundred twenty-two billion, one hundred eleven million, three hundred thirty-one thousand, nine".