210111110122012 has 12 divisors (see below), whose sum is σ = 401121210233016. Its totient is φ = 95505050055440.

The previous prime is 210111110121959. The next prime is 210111110122019. The reversal of 210111110122012 is 210221011111012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210111110122019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2387626251343 + ... + 2387626251430.

It is an arithmetic number, because the mean of its divisors is an integer number (33426767519418).

Almost surely, 2^{210111110122012} is an apocalyptic number.

210111110122012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

210111110122012 is a deficient number, since it is larger than the sum of its proper divisors (191010100111004).

210111110122012 is a wasteful number, since it uses less digits than its factorization.

210111110122012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4775252502788 (or 4775252502786 counting only the distinct ones).

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

Adding to 210111110122012 its reverse (210221011111012), we get a palindrome (420332121233024).

The spelling of 210111110122012 in words is "two hundred ten trillion, one hundred eleven billion, one hundred ten million, one hundred twenty-two thousand, twelve".