222112221001999 has 2 divisors, whose sum is σ = 222112221002000. Its totient is φ = 222112221001998.

The previous prime is 222112221001997. The next prime is 222112221002053. The reversal of 222112221001999 is 999100122211222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222112221001999 - 2¹ = 222112221001997 is a prime.

Together with 222112221001997, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222112221001997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111056110500999 + 111056110501000.

It is an arithmetic number, because the mean of its divisors is an integer number (111056110501000).

Almost surely, 2^{222112221001999} is an apocalyptic number.

222112221001999 is a deficient number, since it is larger than the sum of its proper divisors (1).

222112221001999 is an equidigital number, since it uses as much as digits as its factorization.

222112221001999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 43.

The spelling of 222112221001999 in words is "two hundred twenty-two trillion, one hundred twelve billion, two hundred twenty-one million, one thousand, nine hundred ninety-nine".