1200011022112 has 48 divisors (see below), whose sum is σ = 2842131378240. Its totient is φ = 487222518528.

The previous prime is 1200011022109. The next prime is 1200011022121. The reversal of 1200011022112 is 2112201100021.

It is a junction number, because it is equal to n+sod(n) for n = 1200011022092 and 1200011022101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140974483 + ... + 140982994.

It is an arithmetic number, because the mean of its divisors is an integer number (59211070380).

Almost surely, 2^{1200011022112} is an apocalyptic number.

It is an amenable number.

1200011022112 is an abundant number, since it is smaller than the sum of its proper divisors (1642120356128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1200011022112 is a wasteful number, since it uses less digits than its factorization.

1200011022112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281957513 (or 281957505 counting only the distinct ones).

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

Adding to 1200011022112 its reverse (2112201100021), we get a palindrome (3312212122133).

The spelling of 1200011022112 in words is "one trillion, two hundred billion, eleven million, twenty-two thousand, one hundred twelve".