212240315 has 24 divisors (see below), whose sum is σ = 298284192. Its totient is φ = 144547200.

The previous prime is 212240309. The next prime is 212240321. The reversal of 212240315 is 513042212.

It is an interprime number because it is at equal distance from previous prime (212240309) and next prime (212240321).

It is not a de Polignac number, because 212240315 - 2¹⁴ = 212223931 is a prime.

It is a super-2 number, since 2×212240315² = 90091902622598450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34127 + ... + 39863.

It is an arithmetic number, because the mean of its divisors is an integer number (12428508).

Almost surely, 2^212240315 is an apocalyptic number.

212240315 is a deficient number, since it is larger than the sum of its proper divisors (86043877).

212240315 is a wasteful number, since it uses less digits than its factorization.

212240315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5907 (or 5900 counting only the distinct ones).

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

The square root of 212240315 is about 14568.4698922021. The cubic root of 212240315 is about 596.4984147731.

Adding to 212240315 its reverse (513042212), we get a palindrome (725282527).

The spelling of 212240315 in words is "two hundred twelve million, two hundred forty thousand, three hundred fifteen".