111212201011012 has 24 divisors (see below), whose sum is σ = 196628619479040. Its totient is φ = 55032600472320.

The previous prime is 111212201010947. The next prime is 111212201011061. The reversal of 111212201011012 is 210110102212111.

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, 115716189 + ... + 116673307.

It is an arithmetic number, because the mean of its divisors is an integer number (8192859144960).

Almost surely, 2^{111212201011012} is an apocalyptic number.

It is an amenable number.

111212201011012 is a deficient number, since it is larger than the sum of its proper divisors (85416418468028).

111212201011012 is a wasteful number, since it uses less digits than its factorization.

111212201011012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1256691 (or 1256689 counting only the distinct ones).

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

Adding to 111212201011012 its reverse (210110102212111), we get a palindrome (321322303223123).

The spelling of 111212201011012 in words is "one hundred eleven trillion, two hundred twelve billion, two hundred one million, eleven thousand, twelve".