1000000222 has 16 divisors (see below), whose sum is σ = 1616080032. Its totient is φ = 461340000.

The previous prime is 1000000207. The next prime is 1000000223. The reversal of 1000000222 is 2220000001.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000000223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65847 + ... + 79597.

It is an arithmetic number, because the mean of its divisors is an integer number (101005002).

Almost surely, 2^1000000222 is an apocalyptic number.

1000000222 is a deficient number, since it is larger than the sum of its proper divisors (616079810).

1000000222 is a wasteful number, since it uses less digits than its factorization.

1000000222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16563.

The product of its (nonzero) digits is 8, while the sum is 7.

The square root of 1000000222 is about 31622.7801118118. The cubic root of 1000000222 is about 1000.0000740000. Note that the first 4 decimals are identical.

Adding to 1000000222 its reverse (2220000001), we get a palindrome (3220000223).

The spelling of 1000000222 in words is "one billion, two hundred twenty-two", and thus it is an aban number.