212104612 has 6 divisors (see below), whose sum is σ = 371183078. Its totient is φ = 106052304.

The previous prime is 212104559. The next prime is 212104667. The reversal of 212104612 is 216401212.

It can be written as a sum of positive squares in only one way, i.e., 178649956 + 33454656 = 13366^2 + 5784^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 212104612.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26513073 + ... + 26513080.

Almost surely, 2^212104612 is an apocalyptic number.

It is an amenable number.

212104612 is a deficient number, since it is larger than the sum of its proper divisors (159078466).

212104612 is a wasteful number, since it uses less digits than its factorization.

212104612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53026157 (or 53026155 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 212104612 is about 14563.8117263304. The cubic root of 212104612 is about 596.3712572119.

Adding to 212104612 its reverse (216401212), we get a palindrome (428505824).

The spelling of 212104612 in words is "two hundred twelve million, one hundred four thousand, six hundred twelve".