201212112 has 20 divisors (see below), whose sum is σ = 519798080. Its totient is φ = 67070688.

The previous prime is 201212107. The next prime is 201212113. The reversal of 201212112 is 211212102.

201212112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201212113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2095912 + ... + 2096007.

It is an arithmetic number, because the mean of its divisors is an integer number (25989904).

Almost surely, 2^201212112 is an apocalyptic number.

It is an amenable number.

201212112 is an abundant number, since it is smaller than the sum of its proper divisors (318585968).

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

201212112 is a wasteful number, since it uses less digits than its factorization.

201212112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4191930 (or 4191924 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 201212112 is about 14184.9255197199. The cubic root of 201212112 is about 585.9825813023.

Adding to 201212112 its reverse (211212102), we get a palindrome (412424214).

The spelling of 201212112 in words is "two hundred one million, two hundred twelve thousand, one hundred twelve".