212443012 has 6 divisors (see below), whose sum is σ = 371775278. Its totient is φ = 106221504.

The previous prime is 212443001. The next prime is 212443057. The reversal of 212443012 is 210344212.

212443012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 176730436 + 35712576 = 13294^2 + 5976^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26555373 + ... + 26555380.

Almost surely, 2^212443012 is an apocalyptic number.

It is an amenable number.

212443012 is a deficient number, since it is larger than the sum of its proper divisors (159332266).

212443012 is a wasteful number, since it uses less digits than its factorization.

212443012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53110757 (or 53110755 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 212443012 is about 14575.4249337712. The cubic root of 212443012 is about 596.6882467080.

Adding to 212443012 its reverse (210344212), we get a palindrome (422787224).

The spelling of 212443012 in words is "two hundred twelve million, four hundred forty-three thousand, twelve".