212012512 has 48 divisors (see below), whose sum is σ = 425265120. Its totient is φ = 104030208.

The previous prime is 212012477. The next prime is 212012519. The reversal of 212012512 is 215210212.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212012519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 518164 + ... + 518572.

It is an arithmetic number, because the mean of its divisors is an integer number (8859690).

Almost surely, 2^212012512 is an apocalyptic number.

It is an amenable number.

212012512 is an abundant number, since it is smaller than the sum of its proper divisors (213252608).

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

212012512 is a wasteful number, since it uses less digits than its factorization.

212012512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683 (or 675 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 212012512 is about 14560.6494360657. The cubic root of 212012512 is about 596.2849259999.

Adding to 212012512 its reverse (215210212), we get a palindrome (427222724).

The spelling of 212012512 in words is "two hundred twelve million, twelve thousand, five hundred twelve".