999422222 has 8 divisors (see below), whose sum is σ = 1505856576. Its totient is φ = 497470032.

The previous prime is 999422209. The next prime is 999422227. The reversal of 999422222 is 222224999.

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

999422222 is a modest number, since divided by 22222 gives 9994 as remainder.

It is a nialpdrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 999422222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999422227) 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 in 3 ways as a sum of consecutive naturals, for example, 1119983 + ... + 1120874.

It is an arithmetic number, because the mean of its divisors is an integer number (188232072).

Almost surely, 2^999422222 is an apocalyptic number.

999422222 is a deficient number, since it is larger than the sum of its proper divisors (506434354).

999422222 is a wasteful number, since it uses less digits than its factorization.

999422222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2241082.

The product of its digits is 93312, while the sum is 41.

The square root of 999422222 is about 31613.6398094240. The cubic root of 999422222 is about 999.8073702295.

The spelling of 999422222 in words is "nine hundred ninety-nine million, four hundred twenty-two thousand, two hundred twenty-two".