212124004 has 12 divisors (see below), whose sum is σ = 371319984. Its totient is φ = 106032584.

The previous prime is 212123993. The next prime is 212124043. The reversal of 212124004 is 400421212.

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, 21099 + ... + 29485.

It is an arithmetic number, because the mean of its divisors is an integer number (30943332).

Almost surely, 2^212124004 is an apocalyptic number.

It is an amenable number.

212124004 is a deficient number, since it is larger than the sum of its proper divisors (159195980).

212124004 is a wasteful number, since it uses less digits than its factorization.

212124004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14714 (or 14712 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 212124004 is about 14564.4774708879. The cubic root of 212124004 is about 596.3894313869.

Adding to 212124004 its reverse (400421212), we get a palindrome (612545216).

The spelling of 212124004 in words is "two hundred twelve million, one hundred twenty-four thousand, four".