201212012112 has 80 divisors (see below), whose sum is σ = 523595059200. Its totient is φ = 66582140800.

The previous prime is 201212012101. The next prime is 201212012137. The reversal of 201212012112 is 211210212102.

201212012112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 201212012091 and 201212012100.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4479139 + ... + 4523837.

It is an arithmetic number, because the mean of its divisors is an integer number (6544938240).

Almost surely, 2^201212012112 is an apocalyptic number.

It is an amenable number.

201212012112 is an abundant number, since it is smaller than the sum of its proper divisors (322383047088).

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

201212012112 is a wasteful number, since it uses less digits than its factorization.

201212012112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45392 (or 45386 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 201212012112 its reverse (211210212102), we get a palindrome (412422224214).

The spelling of 201212012112 in words is "two hundred one billion, two hundred twelve million, twelve thousand, one hundred twelve".