1200112112111 has 8 divisors (see below), whose sum is σ = 1330675725648. Its totient is φ = 1073125584000.

The previous prime is 1200112112099. The next prime is 1200112112113. The reversal of 1200112112111 is 1112112110021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1200112112111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200112112113) 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, 894270650 + ... + 894271991.

It is an arithmetic number, because the mean of its divisors is an integer number (166334465706).

Almost surely, 2^{1200112112111} is an apocalyptic number.

1200112112111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1200112112111 is a deficient number, since it is larger than the sum of its proper divisors (130563613537).

1200112112111 is a wasteful number, since it uses less digits than its factorization.

1200112112111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1788542713.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 1200112112111 its reverse (1112112110021), we get a palindrome (2312224222132).

The spelling of 1200112112111 in words is "one trillion, two hundred billion, one hundred twelve million, one hundred twelve thousand, one hundred eleven".