111121112020012 has 12 divisors (see below), whose sum is σ = 194463481344496. Its totient is φ = 55560117350160.

The previous prime is 111121112020007. The next prime is 111121112020013. The reversal of 111121112020012 is 210020211121111.

It is not an unprimeable number, because it can be changed into a prime (111121112020013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109094664 + ... + 110108527.

Almost surely, 2^{111121112020012} is an apocalyptic number.

It is an amenable number.

111121112020012 is a deficient number, since it is larger than the sum of its proper divisors (83342369324484).

111121112020012 is a wasteful number, since it uses less digits than its factorization.

111121112020012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219329928 (or 219329926 counting only the distinct ones).

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

Adding to 111121112020012 its reverse (210020211121111), we get a palindrome (321141323141123).

The spelling of 111121112020012 in words is "one hundred eleven trillion, one hundred twenty-one billion, one hundred twelve million, twenty thousand, twelve".