12012001021110 has 64 divisors (see below), whose sum is σ = 29259911296512. Its totient is φ = 3155301997056.

The previous prime is 12012001021093. The next prime is 12012001021169. The reversal of 12012001021110 is 1112010021021.

It is a super-2 number, since 2×12012001021110² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 100969182 + ... + 101088078.

It is an arithmetic number, because the mean of its divisors is an integer number (457186114008).

Almost surely, 2^{12012001021110} is an apocalyptic number.

12012001021110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12012001021110 is an abundant number, since it is smaller than the sum of its proper divisors (17247910275402).

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

12012001021110 is a wasteful number, since it uses less digits than its factorization.

12012001021110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169237.

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

Adding to 12012001021110 its reverse (1112010021021), we get a palindrome (13124011042131).

The spelling of 12012001021110 in words is "twelve trillion, twelve billion, one million, twenty-one thousand, one hundred ten".