10111111212112 has 20 divisors (see below), whose sum is σ = 19866197383776. Its totient is φ = 4984350596960.

The previous prime is 10111111212089. The next prime is 10111111212127. The reversal of 10111111212112 is 21121211111101.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4450311898 + ... + 4450314169.

Almost surely, 2^{10111111212112} is an apocalyptic number.

It is an amenable number.

10111111212112 is a deficient number, since it is larger than the sum of its proper divisors (9755086171664).

10111111212112 is an equidigital number, since it uses as much as digits as its factorization.

10111111212112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8900626146 (or 8900626140 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 16.

Adding to 10111111212112 its reverse (21121211111101), we get a palindrome (31232322323213).

The spelling of 10111111212112 in words is "ten trillion, one hundred eleven billion, one hundred eleven million, two hundred twelve thousand, one hundred twelve".