212120020212 has 24 divisors (see below), whose sum is σ = 494955187776. Its totient is φ = 70705462848.

The previous prime is 212120020183. The next prime is 212120020247. The reversal of 212120020212 is 212020021212.

212120020212 is digitally balanced in base 2 and base 3, because in such bases 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 = 212120020191 and 212120020200.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 836968 + ... + 1060544.

It is an arithmetic number, because the mean of its divisors is an integer number (20623132824).

Almost surely, 2^212120020212 is an apocalyptic number.

It is an amenable number.

212120020212 is an abundant number, since it is smaller than the sum of its proper divisors (282835167564).

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

212120020212 is a wasteful number, since it uses less digits than its factorization.

212120020212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302647 (or 302645 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 212120020212 its reverse (212020021212), we get a palindrome (424140041424).

It can be divided in two parts, 2121200 and 20212, that added together give a palindrome (2141412).

The spelling of 212120020212 in words is "two hundred twelve billion, one hundred twenty million, twenty thousand, two hundred twelve".