212021112213 has 24 divisors (see below), whose sum is σ = 310658275200. Its totient is φ = 139320177984.

The previous prime is 212021112203. The next prime is 212021112229. The reversal of 212021112213 is 312211120212.

It is not a de Polignac number, because 212021112213 - 2⁸ = 212021111957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212021112203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 163353 + ... + 671361.

It is an arithmetic number, because the mean of its divisors is an integer number (12944094800).

Almost surely, 2^212021112213 is an apocalyptic number.

It is an amenable number.

212021112213 is a deficient number, since it is larger than the sum of its proper divisors (98637162987).

212021112213 is a wasteful number, since it uses less digits than its factorization.

212021112213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508681 (or 508678 counting only the distinct ones).

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

Adding to 212021112213 its reverse (312211120212), we get a palindrome (524232232425).

The spelling of 212021112213 in words is "two hundred twelve billion, twenty-one million, one hundred twelve thousand, two hundred thirteen".