212021110212 has 48 divisors (see below), whose sum is σ = 524476549632. Its totient is φ = 66545418240.

The previous prime is 212021110157. The next prime is 212021110229. The reversal of 212021110212 is 212011120212.

212021110212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 212021110191 and 212021110200.

It is an unprimeable number.

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, 7688253 + ... + 7715780.

It is an arithmetic number, because the mean of its divisors is an integer number (10926594784).

Almost surely, 2^212021110212 is an apocalyptic number.

It is an amenable number.

212021110212 is an abundant number, since it is smaller than the sum of its proper divisors (312455439420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212021110212 is a wasteful number, since it uses less digits than its factorization.

212021110212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15404108 (or 15404106 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 212021110212 its reverse (212011120212), we get a palindrome (424032230424).

The spelling of 212021110212 in words is "two hundred twelve billion, twenty-one million, one hundred ten thousand, two hundred twelve".