222444668879999 has 4 divisors (see below), whose sum is σ = 222444703521936. Its totient is φ = 222444634238064.

The previous prime is 222444668879987. The next prime is 222444668880019. The reversal of 222444668879999 is 999978866444222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 222444668879999 - 2⁸ = 222444668879743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222444668179999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4550699 + ... + 21577724.

It is an arithmetic number, because the mean of its divisors is an integer number (55611175880484).

Almost surely, 2^{222444668879999} is an apocalyptic number.

222444668879999 is a deficient number, since it is larger than the sum of its proper divisors (34641937).

222444668879999 is an equidigital number, since it uses as much as digits as its factorization.

222444668879999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34641936.

The product of its digits is 54177693696, while the sum is 89.

The spelling of 222444668879999 in words is "two hundred twenty-two trillion, four hundred forty-four billion, six hundred sixty-eight million, eight hundred seventy-nine thousand, nine hundred ninety-nine".