12100021332 has 96 divisors (see below), whose sum is σ = 35441817600. Its totient is φ = 3132784512.

The previous prime is 12100021319. The next prime is 12100021343. The reversal of 12100021332 is 23312000121.

12100021332 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 128107 + ... + 201522.

It is an arithmetic number, because the mean of its divisors is an integer number (369185600).

Almost surely, 2^12100021332 is an apocalyptic number.

12100021332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12100021332 is an abundant number, since it is smaller than the sum of its proper divisors (23341796268).

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

12100021332 is a wasteful number, since it uses less digits than its factorization.

12100021332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329685 (or 329683 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 12100021332 its reverse (23312000121), we get a palindrome (35412021453).

The spelling of 12100021332 in words is "twelve billion, one hundred million, twenty-one thousand, three hundred thirty-two".