212420204 has 6 divisors (see below), whose sum is σ = 371735364. Its totient is φ = 106210100.

The previous prime is 212420189. The next prime is 212420207. The reversal of 212420204 is 402024212.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (212420207) by changing a digit.

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 as a sum of consecutive naturals, namely, 26552522 + ... + 26552529.

It is an arithmetic number, because the mean of its divisors is an integer number (61955894).

Almost surely, 2^212420204 is an apocalyptic number.

It is an amenable number.

212420204 is a deficient number, since it is larger than the sum of its proper divisors (159315160).

212420204 is a wasteful number, since it uses less digits than its factorization.

212420204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53105055 (or 53105053 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 212420204 is about 14574.6424999037. The cubic root of 212420204 is about 596.6668923496. Note that the first 3 decimals are identical.

Adding to 212420204 its reverse (402024212), we get a palindrome (614444416).

The spelling of 212420204 in words is "two hundred twelve million, four hundred twenty thousand, two hundred four".