212000012 has 24 divisors (see below), whose sum is σ = 434343840. Its totient is φ = 88640640.

The previous prime is 212000003. The next prime is 212000021. The reversal of 212000012 is 210000212.

It is an interprime number because it is at equal distance from previous prime (212000003) and next prime (212000021).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91187 + ... + 93482.

It is an arithmetic number, because the mean of its divisors is an integer number (18097660).

Almost surely, 2^212000012 is an apocalyptic number.

It is an amenable number.

212000012 is an abundant number, since it is smaller than the sum of its proper divisors (222343828).

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

212000012 is a wasteful number, since it uses less digits than its factorization.

212000012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184721 (or 184719 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 212000012 is about 14560.2201906427. The cubic root of 212000012 is about 596.2732070248.

Adding to 212000012 its reverse (210000212), we get a palindrome (422000224).

The spelling of 212000012 in words is "two hundred twelve million, twelve", and thus it is an aban number.