12010123212 has 96 divisors (see below), whose sum is σ = 31347751680. Its totient is φ = 3556546560.

The previous prime is 12010123207. The next prime is 12010123217. The reversal of 12010123212 is 21232101021.

It is an interprime number because it is at equal distance from previous prime (12010123207) and next prime (12010123217).

It is a junction number, because it is equal to n+sod(n) for n = 12010123191 and 12010123200.

It is not an unprimeable number, because it can be changed into a prime (12010123217) by changing a digit.

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, 1083643 + ... + 1094669.

It is an arithmetic number, because the mean of its divisors is an integer number (326539080).

Almost surely, 2^12010123212 is an apocalyptic number.

12010123212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12010123212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15673875840).

12010123212 is an abundant number, since it is smaller than the sum of its proper divisors (19337628468).

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

12010123212 is a wasteful number, since it uses less digits than its factorization.

12010123212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11351 (or 11349 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 12010123212 its reverse (21232101021), we get a palindrome (33242224233).

The spelling of 12010123212 in words is "twelve billion, ten million, one hundred twenty-three thousand, two hundred twelve".