212012132 has 6 divisors (see below), whose sum is σ = 371021238. Its totient is φ = 106006064.

The previous prime is 212012123. The next prime is 212012197. The reversal of 212012132 is 231210212.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 178649956 + 33362176 = 13366^2 + 5776^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26501513 + ... + 26501520.

It is an arithmetic number, because the mean of its divisors is an integer number (61836873).

Almost surely, 2^212012132 is an apocalyptic number.

It is an amenable number.

212012132 is a deficient number, since it is larger than the sum of its proper divisors (159009106).

212012132 is a wasteful number, since it uses less digits than its factorization.

212012132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53003037 (or 53003035 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 212012132 is about 14560.6363871913. The cubic root of 212012132 is about 596.2845697499.

Adding to 212012132 its reverse (231210212), we get a palindrome (443222344).

The spelling of 212012132 in words is "two hundred twelve million, twelve thousand, one hundred thirty-two".