212415203 has 16 divisors (see below), whose sum is σ = 285202176. Its totient is φ = 152785440.

The previous prime is 212415199. The next prime is 212415209. The reversal of 212415203 is 302514212.

212415203 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 212415203 - 2² = 212415199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212415209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105101 + ... + 107102.

It is an arithmetic number, because the mean of its divisors is an integer number (17825136).

Almost surely, 2^212415203 is an apocalyptic number.

212415203 is a deficient number, since it is larger than the sum of its proper divisors (72786973).

212415203 is a wasteful number, since it uses less digits than its factorization.

212415203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212234.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 212415203 is about 14574.4709337938. The cubic root of 212415203 is about 596.6622098783.

Adding to 212415203 its reverse (302514212), we get a palindrome (514929415).

Subtracting 212415203 from its reverse (302514212), we obtain a palindrome (90099009).

The spelling of 212415203 in words is "two hundred twelve million, four hundred fifteen thousand, two hundred three".