999999000222 has 16 divisors (see below), whose sum is σ = 2054052000912. Its totient is φ = 324324000000.

The previous prime is 999999000199. The next prime is 999999000233. The reversal of 999999000222 is 222000999999.

It is a zygodrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2252249779 + ... + 2252250222.

It is an arithmetic number, because the mean of its divisors is an integer number (128378250057).

Almost surely, 2^999999000222 is an apocalyptic number.

999999000222 is an abundant number, since it is smaller than the sum of its proper divisors (1054053000690).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

999999000222 is a wasteful number, since it uses less digits than its factorization.

999999000222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4504500043.

The product of its (nonzero) digits is 4251528, while the sum is 60.

The spelling of 999999000222 in words is "nine hundred ninety-nine billion, nine hundred ninety-nine million, two hundred twenty-two", and thus it is an aban number.