111200122121012 has 12 divisors (see below), whose sum is σ = 194600711214336. Its totient is φ = 55599918916920.

The previous prime is 111200122120963. The next prime is 111200122121021. The reversal of 111200122121012 is 210121221002111.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 33765908 + ... + 36912555.

It is an arithmetic number, because the mean of its divisors is an integer number (16216725934528).

Almost surely, 2^{111200122121012} is an apocalyptic number.

It is an amenable number.

111200122121012 is a deficient number, since it is larger than the sum of its proper divisors (83400589093324).

111200122121012 is a wasteful number, since it uses less digits than its factorization.

111200122121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71071798 (or 71071796 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 111200122121012 its reverse (210121221002111), we get a palindrome (321321343123123).

The spelling of 111200122121012 in words is "one hundred eleven trillion, two hundred billion, one hundred twenty-two million, one hundred twenty-one thousand, twelve".