999112220222111 has 8 divisors (see below), whose sum is σ = 999214923705600. Its totient is φ = 999009518131800.

The previous prime is 999112220221859. The next prime is 999112220222261. The reversal of 999112220222111 is 111222022211999.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 999112220222111 - 2¹⁴ = 999112220205727 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 (999112220221111) 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 7 ways as a sum of consecutive naturals, for example, 2030672186 + ... + 2031164136.

It is an arithmetic number, because the mean of its divisors is an integer number (124901865463200).

Almost surely, 2^{999112220222111} is an apocalyptic number.

999112220222111 is a deficient number, since it is larger than the sum of its proper divisors (102703483489).

999112220222111 is a wasteful number, since it uses less digits than its factorization.

999112220222111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696589.

The product of its (nonzero) digits is 46656, while the sum is 44.

The spelling of 999112220222111 in words is "nine hundred ninety-nine trillion, one hundred twelve billion, two hundred twenty million, two hundred twenty-two thousand, one hundred eleven".