120212212011111 has 96 divisors (see below), whose sum is σ = 202052607744000. Its totient is φ = 68179266604800.

The previous prime is 120212212011107. The next prime is 120212212011139. The reversal of 120212212011111 is 111110212212021.

It is a happy number.

120212212011111 is a `hidden beast` number, since 120 + 212 + 21 + 201 + 1 + 111 = 666.

It is not a de Polignac number, because 120212212011111 - 2² = 120212212011107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120212212011191) 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 95 ways as a sum of consecutive naturals, for example, 15261765 + ... + 21756513.

It is an arithmetic number, because the mean of its divisors is an integer number (2104714664000).

Almost surely, 2^{120212212011111} is an apocalyptic number.

120212212011111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

120212212011111 is a deficient number, since it is larger than the sum of its proper divisors (81840395732889).

120212212011111 is a wasteful number, since it uses less digits than its factorization.

120212212011111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6494997 (or 6494994 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 120212212011111 its reverse (111110212212021), we get a palindrome (231322424223132).

The spelling of 120212212011111 in words is "one hundred twenty trillion, two hundred twelve billion, two hundred twelve million, eleven thousand, one hundred eleven".