12021131221133 has 16 divisors (see below), whose sum is σ = 13076624448000. Its totient is φ = 11004549555456.

The previous prime is 12021131221111. The next prime is 12021131221247. The reversal of 12021131221133 is 33112213112021.

It is a happy number.

12021131221133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12021131221133 - 2⁸ = 12021131220877 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12021131221099 and 12021131221108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12021131221633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1299941 + ... + 5072682.

It is an arithmetic number, because the mean of its divisors is an integer number (817289028000).

Almost surely, 2^{12021131221133} is an apocalyptic number.

It is an amenable number.

12021131221133 is a deficient number, since it is larger than the sum of its proper divisors (1055493226867).

12021131221133 is a wasteful number, since it uses less digits than its factorization.

12021131221133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6375676.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 12021131221133 its reverse (33112213112021), we get a palindrome (45133344333154).

The spelling of 12021131221133 in words is "twelve trillion, twenty-one billion, one hundred thirty-one million, two hundred twenty-one thousand, one hundred thirty-three".