2021112213 has 8 divisors (see below), whose sum is σ = 2836648800. Its totient is φ = 1276491888.

The previous prime is 2021112211. The next prime is 2021112217. The reversal of 2021112213 is 3122111202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2021112213 - 2¹ = 2021112211 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2021112192 and 2021112201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021112211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17728998 + ... + 17729111.

It is an arithmetic number, because the mean of its divisors is an integer number (354581100).

Almost surely, 2^2021112213 is an apocalyptic number.

It is an amenable number.

2021112213 is a deficient number, since it is larger than the sum of its proper divisors (815536587).

2021112213 is a wasteful number, since it uses less digits than its factorization.

2021112213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35458131.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 2021112213 is about 44956.7816130114. The cubic root of 2021112213 is about 1264.3388282506.

Adding to 2021112213 its reverse (3122111202), we get a palindrome (5143223415).

The spelling of 2021112213 in words is "two billion, twenty-one million, one hundred twelve thousand, two hundred thirteen".