212104132 has 6 divisors (see below), whose sum is σ = 371182238. Its totient is φ = 106052064.

The previous prime is 212104129. The next prime is 212104133. The reversal of 212104132 is 231401212.

It can be written as a sum of positive squares in only one way, i.e., 182358016 + 29746116 = 13504^2 + 5454^2 .

It is a super-2 number, since 2×212104132² = 89976325622946848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212104133) by changing a digit.

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, 26513013 + ... + 26513020.

Almost surely, 2^212104132 is an apocalyptic number.

It is an amenable number.

212104132 is a deficient number, since it is larger than the sum of its proper divisors (159078106).

212104132 is a wasteful number, since it uses less digits than its factorization.

212104132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53026037 (or 53026035 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 212104132 is about 14563.7952471188. The cubic root of 212104132 is about 596.3708073420.

Adding to 212104132 its reverse (231401212), we get a palindrome (443505344).

The spelling of 212104132 in words is "two hundred twelve million, one hundred four thousand, one hundred thirty-two".