12012121032 has 32 divisors (see below), whose sum is σ = 30144502080. Its totient is φ = 3988813760.

The previous prime is 12012121007. The next prime is 12012121039. The reversal of 12012121032 is 23012121021.

It is not an unprimeable number, because it can be changed into a prime (12012121039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 945219 + ... + 957842.

It is an arithmetic number, because the mean of its divisors is an integer number (942015690).

Almost surely, 2^12012121032 is an apocalyptic number.

12012121032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12012121032 is an abundant number, since it is smaller than the sum of its proper divisors (18132381048).

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

12012121032 is a wasteful number, since it uses less digits than its factorization.

12012121032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1903333 (or 1903329 counting only the distinct ones).

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

Adding to 12012121032 its reverse (23012121021), we get a palindrome (35024242053).

The spelling of 12012121032 in words is "twelve billion, twelve million, one hundred twenty-one thousand, thirty-two".