111221122102012 has 96 divisors (see below), whose sum is σ = 211822097256000. Its totient is φ = 50793242572800.

The previous prime is 111221122102001. The next prime is 111221122102039. The reversal of 111221122102012 is 210201221122111.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7101781462 + ... + 7101797122.

It is an arithmetic number, because the mean of its divisors is an integer number (2206480179750).

Almost surely, 2^{111221122102012} is an apocalyptic number.

It is an amenable number.

111221122102012 is a deficient number, since it is larger than the sum of its proper divisors (100600975153988).

111221122102012 is a wasteful number, since it uses less digits than its factorization.

111221122102012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18767 (or 18765 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 111221122102012 its reverse (210201221122111), we get a palindrome (321422343224123).

The spelling of 111221122102012 in words is "one hundred eleven trillion, two hundred twenty-one billion, one hundred twenty-two million, one hundred two thousand, twelve".