212010121212 has 48 divisors (see below), whose sum is σ = 508113285120. Its totient is φ = 68752867392.

The previous prime is 212010121199. The next prime is 212010121237. The reversal of 212010121212 is 212121010212.

It is a junction number, because it is equal to n+sod(n) for n = 212010121191 and 212010121200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5735373 + ... + 5772219.

It is an arithmetic number, because the mean of its divisors is an integer number (10585693440).

Almost surely, 2^212010121212 is an apocalyptic number.

It is an amenable number.

212010121212 is an abundant number, since it is smaller than the sum of its proper divisors (296103163908).

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

212010121212 is a wasteful number, since it uses less digits than its factorization.

212010121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49850 (or 49848 counting only the distinct ones).

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

Adding to 212010121212 its reverse (212121010212), we get a palindrome (424131131424).

The spelling of 212010121212 in words is "two hundred twelve billion, ten million, one hundred twenty-one thousand, two hundred twelve".