111020111212101 has 192 divisors, whose sum is σ = 197281064090880. Its totient is φ = 54939555901440.

The previous prime is 111020111212067. The next prime is 111020111212121. The reversal of 111020111212101 is 101212111020111.

It is not a de Polignac number, because 111020111212101 - 2¹¹ = 111020111210053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111020111212121) 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 191 ways as a sum of consecutive naturals, for example, 1560397210 + ... + 1560468356.

It is an arithmetic number, because the mean of its divisors is an integer number (1027505542140).

Almost surely, 2^{111020111212101} is an apocalyptic number.

It is an amenable number.

111020111212101 is a deficient number, since it is larger than the sum of its proper divisors (86260952878779).

111020111212101 is a wasteful number, since it uses less digits than its factorization.

111020111212101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72004 (or 71997 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 111020111212101 its reverse (101212111020111), we get a palindrome (212232222232212).

The spelling of 111020111212101 in words is "one hundred eleven trillion, twenty billion, one hundred eleven million, two hundred twelve thousand, one hundred one".