1200022111012 has 24 divisors (see below), whose sum is σ = 2119824756000. Its totient is φ = 594358739520.

The previous prime is 1200022110961. The next prime is 1200022111037. The reversal of 1200022111012 is 2101112200021.

It is a junction number, because it is equal to n+sod(n) for n = 1200022110983 and 1200022111001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6000187 + ... + 6196957.

It is an arithmetic number, because the mean of its divisors is an integer number (88326031500).

Almost surely, 2^{1200022111012} is an apocalyptic number.

It is an amenable number.

1200022111012 is a deficient number, since it is larger than the sum of its proper divisors (919802644988).

1200022111012 is a wasteful number, since it uses less digits than its factorization.

1200022111012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211131 (or 211129 counting only the distinct ones).

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

Adding to 1200022111012 its reverse (2101112200021), we get a palindrome (3301134311033).

The spelling of 1200022111012 in words is "one trillion, two hundred billion, twenty-two million, one hundred eleven thousand, twelve".