12111120210 has 64 divisors (see below), whose sum is σ = 33287565312. Its totient is φ = 2762548416.

The previous prime is 12111120193. The next prime is 12111120361. The reversal of 12111120210 is 1202111121.

12111120210 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43059 + ... + 161481.

It is an arithmetic number, because the mean of its divisors is an integer number (520118208).

Almost surely, 2^12111120210 is an apocalyptic number.

12111120210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12111120210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16643782656).

12111120210 is an abundant number, since it is smaller than the sum of its proper divisors (21176445102).

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

12111120210 is a wasteful number, since it uses less digits than its factorization.

12111120210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118927.

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

Adding to 12111120210 its reverse (1202111121), we get a palindrome (13313231331).

The spelling of 12111120210 in words is "twelve billion, one hundred eleven million, one hundred twenty thousand, two hundred ten".