1200220111012 has 36 divisors (see below), whose sum is σ = 2277146182080. Its totient is φ = 553274403552.

The previous prime is 1200220110977. The next prime is 1200220111037. The reversal of 1200220111012 is 2101110220021.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 1200220110983 and 1200220111001.

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 11 ways as a sum of consecutive naturals, for example, 522312 + ... + 1635007.

Almost surely, 2^{1200220111012} is an apocalyptic number.

It is an amenable number.

1200220111012 is a deficient number, since it is larger than the sum of its proper divisors (1076926071068).

1200220111012 is a wasteful number, since it uses less digits than its factorization.

1200220111012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2158172 (or 2158157 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1200220111012 its reverse (2101110220021), we get a palindrome (3301330331033).

The spelling of 1200220111012 in words is "one trillion, two hundred billion, two hundred twenty million, one hundred eleven thousand, twelve".