222000019 has 2 divisors, whose sum is σ = 222000020. Its totient is φ = 222000018.

The previous prime is 221999993. The next prime is 222000043. The reversal of 222000019 is 910000222.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222000019 - 2⁹ = 221999507 is a prime.

It is a super-2 number, since 2×222000019² = 98568016872000722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221999966 and 222000011.

It is not a weakly prime, because it can be changed into another prime (222000319) 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, 111000009 + 111000010.

It is an arithmetic number, because the mean of its divisors is an integer number (111000010).

Almost surely, 2^222000019 is an apocalyptic number.

222000019 is a deficient number, since it is larger than the sum of its proper divisors (1).

222000019 is an equidigital number, since it uses as much as digits as its factorization.

222000019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 222000019 is about 14899.6650633496. The cubic root of 222000019 is about 605.5049119253.

The spelling of 222000019 in words is "two hundred twenty-two million, nineteen", and thus it is an aban number.