212315012 has 48 divisors (see below), whose sum is σ = 458640000. Its totient is φ = 83745792.

The previous prime is 212315011. The next prime is 212315039. The reversal of 212315012 is 210513212.

It is a happy number.

212315012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (212315011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 169364 + ... + 170612.

It is an arithmetic number, because the mean of its divisors is an integer number (9555000).

Almost surely, 2^212315012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212315012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229320000).

212315012 is an abundant number, since it is smaller than the sum of its proper divisors (246324988).

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

212315012 is a wasteful number, since it uses less digits than its factorization.

212315012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1740 (or 1738 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 212315012 is about 14571.0333195693. The cubic root of 212315012 is about 596.5683848538.

Adding to 212315012 its reverse (210513212), we get a palindrome (422828224).

The spelling of 212315012 in words is "two hundred twelve million, three hundred fifteen thousand, twelve".