1000222222 has 8 divisors (see below), whose sum is σ = 1501097400. Its totient is φ = 499856424.

The previous prime is 1000222219. The next prime is 1000222243. The reversal of 1000222222 is 2222220001.

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

1000222222 is a modest number, since divided by 22222 gives 10002 as remainder.

It is a congruent number.

It is an unprimeable number.

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, 122397 + ... + 130312.

It is an arithmetic number, because the mean of its divisors is an integer number (187637175).

Almost surely, 2^1000222222 is an apocalyptic number.

1000222222 is a deficient number, since it is larger than the sum of its proper divisors (500875178).

1000222222 is a wasteful number, since it uses less digits than its factorization.

1000222222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254690.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 1000222222 is about 31626.2900448345. The cubic root of 1000222222 is about 1000.0740685137.

Adding to 1000222222 its reverse (2222220001), we get a palindrome (3222442223).

The spelling of 1000222222 in words is "one billion, two hundred twenty-two thousand, two hundred twenty-two".