201210121112112 has 120 divisors (see below), whose sum is σ = 671841050722800. Its totient is φ = 57488606025984.

The previous prime is 201210121112093. The next prime is 201210121112159. The reversal of 201210121112112 is 211211121012102.

It is a happy number.

201210121112112 is a `hidden beast` number, since 201 + 210 + 121 + 1 + 121 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4752674437 + ... + 4752716772.

It is an arithmetic number, because the mean of its divisors is an integer number (5598675422690).

Almost surely, 2^{201210121112112} is an apocalyptic number.

It is an amenable number.

201210121112112 is an abundant number, since it is smaller than the sum of its proper divisors (470630929610688).

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

201210121112112 is a wasteful number, since it uses less digits than its factorization.

201210121112112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9505391240 (or 9505391221 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 201210121112112 its reverse (211211121012102), we get a palindrome (412421242124214).

The spelling of 201210121112112 in words is "two hundred one trillion, two hundred ten billion, one hundred twenty-one million, one hundred twelve thousand, one hundred twelve".