1200120011012 has 24 divisors (see below), whose sum is σ = 2262989378496. Its totient is φ = 553601606688.

The previous prime is 1200120010997. The next prime is 1200120011017. The reversal of 1200120011012 is 2101100210021.

It is a junction number, because it is equal to n+sod(n) for n = 1200120010984 and 1200120011002.

It is not an unprimeable number, because it can be changed into a prime (1200120011017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6151718 + ... + 6343805.

It is an arithmetic number, because the mean of its divisors is an integer number (94291224104).

Almost surely, 2^{1200120011012} is an apocalyptic number.

It is an amenable number.

1200120011012 is a deficient number, since it is larger than the sum of its proper divisors (1062869367484).

1200120011012 is a wasteful number, since it uses less digits than its factorization.

1200120011012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12497387 (or 12497385 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1200120011012 its reverse (2101100210021), we get a palindrome (3301220221033).

The spelling of 1200120011012 in words is "one trillion, two hundred billion, one hundred twenty million, eleven thousand, twelve".