12011212021332 has 24 divisors (see below), whose sum is σ = 28677932579296. Its totient is φ = 3910627169568.

The previous prime is 12011212021297. The next prime is 12011212021337. The reversal of 12011212021332 is 23312021211021.

It is a junction number, because it is equal to n+sod(n) for n = 12011212021299 and 12011212021308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011212021337) 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, 11638770823 + ... + 11638771854.

Almost surely, 2^{12011212021332} is an apocalyptic number.

12011212021332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12011212021332 is an abundant number, since it is smaller than the sum of its proper divisors (16666720557964).

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

12011212021332 is a wasteful number, since it uses less digits than its factorization.

12011212021332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23277542727 (or 23277542725 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 12011212021332 its reverse (23312021211021), we get a palindrome (35323233232353).

The spelling of 12011212021332 in words is "twelve trillion, eleven billion, two hundred twelve million, twenty-one thousand, three hundred thirty-two".