1000220012 has 48 divisors (see below), whose sum is σ = 1950655392. Its totient is φ = 444948480.

The previous prime is 1000219999. The next prime is 1000220029. The reversal of 1000220012 is 2100220001.

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 15 ways as a sum of consecutive naturals, for example, 438908 + ... + 441180.

It is an arithmetic number, because the mean of its divisors is an integer number (40638654).

Almost surely, 2^1000220012 is an apocalyptic number.

It is an amenable number.

1000220012 is a deficient number, since it is larger than the sum of its proper divisors (950435380).

1000220012 is a wasteful number, since it uses less digits than its factorization.

1000220012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2498 (or 2496 counting only the distinct ones).

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

The square root of 1000220012 is about 31626.2551055290. The cubic root of 1000220012 is about 1000.0733319556.

Adding to 1000220012 its reverse (2100220001), we get a palindrome (3100440013).

The spelling of 1000220012 in words is "one billion, two hundred twenty thousand, twelve".