1200120212111 has 8 divisors (see below), whose sum is σ = 1275927642720. Its totient is φ = 1126281805792.

The previous prime is 1200120212107. The next prime is 1200120212117. The reversal of 1200120212111 is 1112120210021.

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

It is a cyclic number.

It is not a de Polignac number, because 1200120212111 - 2² = 1200120212107 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 (1200120212117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 492254816 + ... + 492257253.

It is an arithmetic number, because the mean of its divisors is an integer number (159490955340).

Almost surely, 2^{1200120212111} is an apocalyptic number.

1200120212111 is a deficient number, since it is larger than the sum of its proper divisors (75807430609).

1200120212111 is an equidigital number, since it uses as much as digits as its factorization.

1200120212111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984512145.

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

Adding to 1200120212111 its reverse (1112120210021), we get a palindrome (2312240422132).

The spelling of 1200120212111 in words is "one trillion, two hundred billion, one hundred twenty million, two hundred twelve thousand, one hundred eleven".