1000111222 has 24 divisors (see below), whose sum is σ = 1650787488. Its totient is φ = 454087920.

The previous prime is 1000111213. The next prime is 1000111223. The reversal of 1000111222 is 2221110001.

It is a junction number, because it is equal to n+sod(n) for n = 1000111199 and 1000111208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000111223) 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 11 ways as a sum of consecutive naturals, for example, 291843 + ... + 295249.

It is an arithmetic number, because the mean of its divisors is an integer number (68782812).

Almost surely, 2^1000111222 is an apocalyptic number.

1000111222 is a deficient number, since it is larger than the sum of its proper divisors (650676266).

1000111222 is a wasteful number, since it uses less digits than its factorization.

1000111222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4644 (or 4633 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 1000111222 is about 31624.5351270181. The cubic root of 1000111222 is about 1000.0370726256.

Adding to 1000111222 its reverse (2221110001), we get a palindrome (3221221223).

The spelling of 1000111222 in words is "one billion, one hundred eleven thousand, two hundred twenty-two".