212043332 has 12 divisors (see below), whose sum is σ = 373221996. Its totient is φ = 105408480.

The previous prime is 212043323. The next prime is 212043343. The reversal of 212043332 is 233340212.

It can be written as a sum of positive squares in 2 ways, for example, as 134003776 + 78039556 = 11576^2 + 8834^2 .

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 in 3 ways as a sum of consecutive naturals, for example, 152519 + ... + 153902.

It is an arithmetic number, because the mean of its divisors is an integer number (31101833).

Almost surely, 2^212043332 is an apocalyptic number.

It is an amenable number.

212043332 is a deficient number, since it is larger than the sum of its proper divisors (161178664).

212043332 is a wasteful number, since it uses less digits than its factorization.

212043332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306598 (or 306596 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 212043332 is about 14561.7077295213. The cubic root of 212043332 is about 596.3138183372.

Adding to 212043332 its reverse (233340212), we get a palindrome (445383544).

The spelling of 212043332 in words is "two hundred twelve million, forty-three thousand, three hundred thirty-two".