212240125 has 16 divisors (see below), whose sum is σ = 274014000. Its totient is φ = 163934400.

The previous prime is 212240101. The next prime is 212240141. The reversal of 212240125 is 521042212.

It can be written as a sum of positive squares in 8 ways, for example, as 77633721 + 134606404 = 8811^2 + 11602^2 .

It is not a de Polignac number, because 212240125 - 2¹⁵ = 212207357 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25650 + ... + 32899.

It is an arithmetic number, because the mean of its divisors is an integer number (17125875).

Almost surely, 2^212240125 is an apocalyptic number.

212240125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

212240125 is a deficient number, since it is larger than the sum of its proper divisors (61773875).

212240125 is an equidigital number, since it uses as much as digits as its factorization.

212240125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58593 (or 58583 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 212240125 is about 14568.4633712688. The cubic root of 212240125 is about 596.4982367756.

Adding to 212240125 its reverse (521042212), we get a palindrome (733282337).

The spelling of 212240125 in words is "two hundred twelve million, two hundred forty thousand, one hundred twenty-five".