201212100101112 has 32 divisors (see below), whose sum is σ = 503110568407680. Its totient is φ = 67059990946400.

The previous prime is 201212100101081. The next prime is 201212100101191. The reversal of 201212100101112 is 211101001212102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 201212100101091 and 201212100101100.

It is a congruent number.

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, 669164514 + ... + 669465137.

It is an arithmetic number, because the mean of its divisors is an integer number (15722205262740).

Almost surely, 2^{201212100101112} is an apocalyptic number.

It is an amenable number.

201212100101112 is an abundant number, since it is smaller than the sum of its proper divisors (301898468306568).

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

201212100101112 is a wasteful number, since it uses less digits than its factorization.

201212100101112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1338635923 (or 1338635919 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 201212100101112 its reverse (211101001212102), we get a palindrome (412313101313214).

The spelling of 201212100101112 in words is "two hundred one trillion, two hundred twelve billion, one hundred million, one hundred one thousand, one hundred twelve".