12021111312132 has 48 divisors (see below), whose sum is σ = 30207362516352. Its totient is φ = 3698746245120.

The previous prime is 12021111312097. The next prime is 12021111312191. The reversal of 12021111312132 is 23121311112021.

It is a junction number, because it is equal to n+sod(n) for n = 12021111312099 and 12021111312108.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10134532 + ... + 11258372.

It is an arithmetic number, because the mean of its divisors is an integer number (629320052424).

Almost surely, 2^{12021111312132} is an apocalyptic number.

12021111312132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12021111312132 is an abundant number, since it is smaller than the sum of its proper divisors (18186251204220).

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

12021111312132 is a wasteful number, since it uses less digits than its factorization.

12021111312132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1192428 (or 1192426 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 12021111312132 its reverse (23121311112021), we get a palindrome (35142422424153).

The spelling of 12021111312132 in words is "twelve trillion, twenty-one billion, one hundred eleven million, three hundred twelve thousand, one hundred thirty-two".