210012121212 has 48 divisors (see below), whose sum is σ = 503447347200. Its totient is φ = 68088347712.

The previous prime is 210012121177. The next prime is 210012121237. The reversal of 210012121212 is 212121210012.

210012121212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

210012121212 is a modest number, since divided by 12121212 gives 2100 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 210012121191 and 210012121200.

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 15 ways as a sum of consecutive naturals, for example, 1218789 + ... + 1380387.

It is an arithmetic number, because the mean of its divisors is an integer number (10488486400).

Almost surely, 2^210012121212 is an apocalyptic number.

It is an amenable number.

210012121212 is an abundant number, since it is smaller than the sum of its proper divisors (293435225988).

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

210012121212 is a wasteful number, since it uses less digits than its factorization.

210012121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164570 (or 164568 counting only the distinct ones).

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

Adding to 210012121212 its reverse (212121210012), we get a palindrome (422133331224).

The spelling of 210012121212 in words is "two hundred ten billion, twelve million, one hundred twenty-one thousand, two hundred twelve".