212021120113 has 16 divisors (see below), whose sum is σ = 238193510400. Its totient is φ = 187081062480.

The previous prime is 212021120093. The next prime is 212021120249. The reversal of 212021120113 is 311021120212.

212021120113 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 a de Polignac number, because none of the positive numbers 2^k-212021120113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212021120813) 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 15 ways as a sum of consecutive naturals, for example, 2016381 + ... + 2118922.

It is an arithmetic number, because the mean of its divisors is an integer number (14887094400).

Almost surely, 2^212021120113 is an apocalyptic number.

It is an amenable number.

212021120113 is a deficient number, since it is larger than the sum of its proper divisors (26172390287).

212021120113 is a wasteful number, since it uses less digits than its factorization.

212021120113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4135452.

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

Adding to 212021120113 its reverse (311021120212), we get a palindrome (523042240325).

Subtracting 212021120113 from its reverse (311021120212), we obtain a palindrome (99000000099).

The spelling of 212021120113 in words is "two hundred twelve billion, twenty-one million, one hundred twenty thousand, one hundred thirteen".