1200220012 has 24 divisors (see below), whose sum is σ = 2148410880. Its totient is φ = 586428240.

The previous prime is 1200220001. The next prime is 1200220031. The reversal of 1200220012 is 2100220021.

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 7 ways as a sum of consecutive naturals, for example, 125289 + ... + 134527.

It is an arithmetic number, because the mean of its divisors is an integer number (89517120).

Almost surely, 2^1200220012 is an apocalyptic number.

It is an amenable number.

1200220012 is a deficient number, since it is larger than the sum of its proper divisors (948190868).

1200220012 is a wasteful number, since it uses less digits than its factorization.

1200220012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9981 (or 9979 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 1200220012 is about 34644.1916055203. The cubic root of 1200220012 is about 1062.7235090021.

Adding to 1200220012 its reverse (2100220021), we get a palindrome (3300440033).

Subtracting 1200220012 from its reverse (2100220021), we obtain a palindrome (900000009).

The spelling of 1200220012 in words is "one billion, two hundred million, two hundred twenty thousand, twelve".