111212001100012 has 24 divisors (see below), whose sum is σ = 200990292672512. Its totient is φ = 53787831656400.

The previous prime is 111212001100007. The next prime is 111212001100099. The reversal of 111212001100012 is 210001100212111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 111212001099965 and 111212001100001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203283564 + ... + 203829907.

Almost surely, 2^{111212001100012} is an apocalyptic number.

It is an amenable number.

111212001100012 is a deficient number, since it is larger than the sum of its proper divisors (89778291572500).

111212001100012 is a wasteful number, since it uses less digits than its factorization.

111212001100012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407115709 (or 407115707 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 111212001100012 its reverse (210001100212111), we get a palindrome (321213101312123).

The spelling of 111212001100012 in words is "one hundred eleven trillion, two hundred twelve billion, one million, one hundred thousand, twelve".