1000222312 has 16 divisors (see below), whose sum is σ = 1919031840. Its totient is φ = 488480496.

The previous prime is 1000222309. The next prime is 1000222331. The reversal of 1000222312 is 2132220001.

It is a junction number, because it is equal to n+sod(n) for n = 1000222292 and 1000222301.

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, 1453468 + ... + 1454155.

It is an arithmetic number, because the mean of its divisors is an integer number (119939490).

Almost surely, 2^1000222312 is an apocalyptic number.

It is an amenable number.

1000222312 is a deficient number, since it is larger than the sum of its proper divisors (918809528).

1000222312 is a wasteful number, since it uses less digits than its factorization.

1000222312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2907672 (or 2907668 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1000222312 is about 31626.2914677014. The cubic root of 1000222312 is about 1000.0740985093.

Adding to 1000222312 its reverse (2132220001), we get a palindrome (3132442313).

The spelling of 1000222312 in words is "one billion, two hundred twenty-two thousand, three hundred twelve".