212100230 has 16 divisors (see below), whose sum is σ = 401874480. Its totient is φ = 80374752.

The previous prime is 212100193. The next prime is 212100241. The reversal of 212100230 is 32001212.

It is a happy number.

212100230 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 557969 + ... + 558348.

It is an arithmetic number, because the mean of its divisors is an integer number (25117155).

Almost surely, 2^212100230 is an apocalyptic number.

212100230 is a deficient number, since it is larger than the sum of its proper divisors (189774250).

212100230 is a wasteful number, since it uses less digits than its factorization.

212100230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1116343.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 212100230 is about 14563.6612841689. The cubic root of 212100230 is about 596.3671502498.

Adding to 212100230 its reverse (32001212), we get a palindrome (244101442).

The spelling of 212100230 in words is "two hundred twelve million, one hundred thousand, two hundred thirty".