12000000212 has 24 divisors (see below), whose sum is σ = 21601528872. Its totient is φ = 5829350400.

The previous prime is 12000000169. The next prime is 12000000293. The reversal of 12000000212 is 21200000021.

It can be written as a sum of positive squares in 4 ways, for example, as 200392336 + 11799607876 = 14156^2 + 108626^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12000000212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112283 + ... + 191330.

It is an arithmetic number, because the mean of its divisors is an integer number (900063703).

Almost surely, 2^12000000212 is an apocalyptic number.

It is an amenable number.

12000000212 is a deficient number, since it is larger than the sum of its proper divisors (9601528660).

12000000212 is a wasteful number, since it uses less digits than its factorization.

12000000212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303899 (or 303897 counting only the distinct ones).

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

Adding to 12000000212 its reverse (21200000021), we get a palindrome (33200000233).

It can be divided in two parts, 1200000021 and 2, that multiplied together give a palindrome (2400000042).

The spelling of 12000000212 in words is "twelve billion, two hundred twelve", and thus it is an aban number.