212228804 has 12 divisors (see below), whose sum is σ = 371512764. Its totient is φ = 106082304.

The previous prime is 212228791. The next prime is 212228827. The reversal of 212228804 is 408822212.

It can be written as a sum of positive squares in 2 ways, for example, as 87459904 + 124768900 = 9352^2 + 11170^2 .

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 in 3 ways as a sum of consecutive naturals, for example, 12932 + ... + 24324.

It is an arithmetic number, because the mean of its divisors is an integer number (30959397).

Almost surely, 2^212228804 is an apocalyptic number.

It is an amenable number.

212228804 is a deficient number, since it is larger than the sum of its proper divisors (159283960).

212228804 is a wasteful number, since it uses less digits than its factorization.

212228804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16054 (or 16052 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 29.

The square root of 212228804 is about 14568.0748213345. The cubic root of 212228804 is about 596.4876307437.

The spelling of 212228804 in words is "two hundred twelve million, two hundred twenty-eight thousand, eight hundred four".