1200120001112 has 32 divisors (see below), whose sum is σ = 2290032334800. Its totient is φ = 589459538304.

The previous prime is 1200120001061. The next prime is 1200120001147. The reversal of 1200120001112 is 2111000210021.

It is a junction number, because it is equal to n+sod(n) for n = 1200120001093 and 1200120001102.

It is a congruent number.

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, 277883 + ... + 1573994.

Almost surely, 2^{1200120001112} is an apocalyptic number.

It is an amenable number.

1200120001112 is a deficient number, since it is larger than the sum of its proper divisors (1089912333688).

1200120001112 is a wasteful number, since it uses less digits than its factorization.

1200120001112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1853315 (or 1853311 counting only the distinct ones).

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

Adding to 1200120001112 its reverse (2111000210021), we get a palindrome (3311120211133).

The spelling of 1200120001112 in words is "one trillion, two hundred billion, one hundred twenty million, one thousand, one hundred twelve".