212111020110 has 128 divisors (see below), whose sum is σ = 593836075008. Its totient is φ = 47916800000.

The previous prime is 212111020067. The next prime is 212111020111. The reversal of 212111020110 is 11020111212.

212111020110 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212111020111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 379435 + ... + 753785.

It is an arithmetic number, because the mean of its divisors is an integer number (4639344336).

Almost surely, 2^212111020110 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212111020110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (296918037504).

212111020110 is an abundant number, since it is smaller than the sum of its proper divisors (381725054898).

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

212111020110 is a wasteful number, since it uses less digits than its factorization.

212111020110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374490.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 212111020110 its reverse (11020111212), we get a palindrome (223131131322).

The spelling of 212111020110 in words is "two hundred twelve billion, one hundred eleven million, twenty thousand, one hundred ten".