201212012112112 has 20 divisors (see below), whose sum is σ = 389848496936080. Its totient is φ = 100605948386688.

The previous prime is 201212012112091. The next prime is 201212012112151. The reversal of 201212012112112 is 211211210212102.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 201212012112112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45231589 + ... + 49480507.

It is an arithmetic number, because the mean of its divisors is an integer number (19492424846804).

Almost surely, 2^{201212012112112} is an apocalyptic number.

It is an amenable number.

201212012112112 is a deficient number, since it is larger than the sum of its proper divisors (188636484823968).

201212012112112 is a wasteful number, since it uses less digits than its factorization.

201212012112112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7208680 (or 7208674 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 201212012112112 its reverse (211211210212102), we get a palindrome (412423222324214).

The spelling of 201212012112112 in words is "two hundred one trillion, two hundred twelve billion, twelve million, one hundred twelve thousand, one hundred twelve".