12012112110 has 64 divisors (see below), whose sum is σ = 30810316032. Its totient is φ = 2986615296.

The previous prime is 12012112087. The next prime is 12012112117. The reversal of 12012112110 is 1121121021.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012112117) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55492 + ... + 164631.

It is an arithmetic number, because the mean of its divisors is an integer number (481411188).

Almost surely, 2^12012112110 is an apocalyptic number.

12012112110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12012112110 is an abundant number, since it is smaller than the sum of its proper divisors (18798203922).

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

12012112110 is a wasteful number, since it uses less digits than its factorization.

12012112110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220257.

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

Adding to 12012112110 its reverse (1121121021), we get a palindrome (13133233131).

It can be divided in two parts, 120121 and 12110, that added together give a palindrome (132231).

The spelling of 12012112110 in words is "twelve billion, twelve million, one hundred twelve thousand, one hundred ten".