212021021113 has 8 divisors (see below), whose sum is σ = 231299903520. Its totient is φ = 192742846080.

The previous prime is 212021021099. The next prime is 212021021159. The reversal of 212021021113 is 311120120212.

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

It is a cyclic number.

It is not a de Polignac number, because 212021021113 - 2⁵ = 212021021081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212021022113) 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, 597193 + ... + 883561.

It is an arithmetic number, because the mean of its divisors is an integer number (28912487940).

Almost surely, 2^212021021113 is an apocalyptic number.

It is an amenable number.

212021021113 is a deficient number, since it is larger than the sum of its proper divisors (19278882407).

212021021113 is a wasteful number, since it uses less digits than its factorization.

212021021113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353687.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 212021021113 its reverse (311120120212), we get a palindrome (523141141325).

Subtracting 212021021113 from its reverse (311120120212), we obtain a palindrome (99099099099).

The spelling of 212021021113 in words is "two hundred twelve billion, twenty-one million, twenty-one thousand, one hundred thirteen".