12021112020213 has 56 divisors (see below), whose sum is σ = 18991464345600. Its totient is φ = 7584501723264.

The previous prime is 12021112020161. The next prime is 12021112020233. The reversal of 12021112020213 is 31202021112021.

12021112020213 is a `hidden beast` number, since 120 + 211 + 120 + 2 + 0 + 213 = 666.

It is not a de Polignac number, because 12021112020213 - 2⁶ = 12021112020149 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12021112020233) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 13088268 + ... + 13976586.

Almost surely, 2^{12021112020213} is an apocalyptic number.

It is an amenable number.

12021112020213 is a deficient number, since it is larger than the sum of its proper divisors (6970352325387).

12021112020213 is an frugal number, since it uses more digits than its factorization.

12021112020213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 889333 (or 889318 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 12021112020213 its reverse (31202021112021), we get a palindrome (43223133132234).

The spelling of 12021112020213 in words is "twelve trillion, twenty-one billion, one hundred twelve million, twenty thousand, two hundred thirteen".