212300225 has 12 divisors (see below), whose sum is σ = 263438124. Its totient is φ = 169720320.

The previous prime is 212300203. The next prime is 212300239. The reversal of 212300225 is 522003212.

212300225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 31854736 + 180445489 = 5644^2 + 13433^2 .

It is not a de Polignac number, because 212300225 - 2¹⁶ = 212234689 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55577 + ... + 59273.

It is an arithmetic number, because the mean of its divisors is an integer number (21953177).

Almost surely, 2^212300225 is an apocalyptic number.

212300225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

212300225 is a deficient number, since it is larger than the sum of its proper divisors (51137899).

212300225 is a wasteful number, since it uses less digits than its factorization.

212300225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6004 (or 5999 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 212300225 is about 14570.5258999118. The cubic root of 212300225 is about 596.5545348966.

Adding to 212300225 its reverse (522003212), we get a palindrome (734303437).

The spelling of 212300225 in words is "two hundred twelve million, three hundred thousand, two hundred twenty-five".