210111011112 has 256 divisors, whose sum is σ = 574376140800. Its totient is φ = 63898813440.

The previous prime is 210111011107. The next prime is 210111011113. The reversal of 210111011112 is 211110111012.

210111011112 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 not an unprimeable number, because it can be changed into a prime (210111011113) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 164534218 + ... + 164535494.

It is an arithmetic number, because the mean of its divisors is an integer number (2243656800).

Almost surely, 2^210111011112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 210111011112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (287188070400).

210111011112 is an abundant number, since it is smaller than the sum of its proper divisors (364265129688).

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

210111011112 is a wasteful number, since it uses less digits than its factorization.

210111011112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1536 (or 1532 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 210111011112 its reverse (211110111012), we get a palindrome (421221122124).

The spelling of 210111011112 in words is "two hundred ten billion, one hundred eleven million, eleven thousand, one hundred twelve".