212015512 has 8 divisors (see below), whose sum is σ = 397529100. Its totient is φ = 106007752.

The previous prime is 212015501. The next prime is 212015563. The reversal of 212015512 is 215510212.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 212015512.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13250962 + ... + 13250977.

Almost surely, 2^212015512 is an apocalyptic number.

It is an amenable number.

212015512 is a deficient number, since it is larger than the sum of its proper divisors (185513588).

212015512 is a wasteful number, since it uses less digits than its factorization.

212015512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26501945 (or 26501941 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 212015512 is about 14560.7524530843. The cubic root of 212015512 is about 596.2877384854.

Adding to 212015512 its reverse (215510212), we get a palindrome (427525724).

The spelling of 212015512 in words is "two hundred twelve million, fifteen thousand, five hundred twelve".