212320124 has 12 divisors (see below), whose sum is σ = 374486784. Its totient is φ = 105323904.

The previous prime is 212320081. The next prime is 212320127. The reversal of 212320124 is 421023212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212320127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208469 + ... + 209484.

It is an arithmetic number, because the mean of its divisors is an integer number (31207232).

Almost surely, 2^212320124 is an apocalyptic number.

It is an amenable number.

212320124 is a deficient number, since it is larger than the sum of its proper divisors (162166660).

212320124 is a wasteful number, since it uses less digits than its factorization.

212320124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418084 (or 418082 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 212320124 is about 14571.2087350364. The cubic root of 212320124 is about 596.5731727600.

Adding to 212320124 its reverse (421023212), we get a palindrome (633343336).

The spelling of 212320124 in words is "two hundred twelve million, three hundred twenty thousand, one hundred twenty-four".