1200122111012 has 48 divisors (see below), whose sum is σ = 2294581746240. Its totient is φ = 544691664000.

The previous prime is 1200122110997. The next prime is 1200122111107. The reversal of 1200122111012 is 2101112210021.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121207262 + ... + 121217162.

It is an arithmetic number, because the mean of its divisors is an integer number (47803786380).

Almost surely, 2^{1200122111012} is an apocalyptic number.

It is an amenable number.

1200122111012 is a deficient number, since it is larger than the sum of its proper divisors (1094459635228).

1200122111012 is a wasteful number, since it uses less digits than its factorization.

1200122111012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13772 (or 13770 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1200122111012 its reverse (2101112210021), we get a palindrome (3301234321033).

Subtracting 1200122111012 from its reverse (2101112210021), we obtain a palindrome (900990099009).

The spelling of 1200122111012 in words is "one trillion, two hundred billion, one hundred twenty-two million, one hundred eleven thousand, twelve".