201111121102112 has 48 divisors (see below), whose sum is σ = 427231962130680. Its totient is φ = 92638158753792.

The previous prime is 201111121102109. The next prime is 201111121102181. The reversal of 201111121102112 is 211201121111102.

It can be written as a sum of positive squares in 4 ways, for example, as 195843343315216 + 5267777786896 = 13994404^2 + 2295164^2 .

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 7 ways as a sum of consecutive naturals, for example, 474680393 + ... + 475103880.

Almost surely, 2^{201111121102112} is an apocalyptic number.

It is an amenable number.

201111121102112 is an abundant number, since it is smaller than the sum of its proper divisors (226120841028568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201111121102112 is a wasteful number, since it uses less digits than its factorization.

201111121102112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949784805 (or 949784797 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 201111121102112 its reverse (211201121111102), we get a palindrome (412312242213214).

The spelling of 201111121102112 in words is "two hundred one trillion, one hundred eleven billion, one hundred twenty-one million, one hundred two thousand, one hundred twelve".