212234313 has 32 divisors (see below), whose sum is σ = 306063360. Its totient is φ = 130403520.

The previous prime is 212234303. The next prime is 212234333. The reversal of 212234313 is 313432212.

It is not a de Polignac number, because 212234313 - 2¹⁰ = 212233289 is a prime.

It is a super-2 number, since 2×212234313² = 90086807229163938, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 212234313.

It is not an unprimeable number, because it can be changed into a prime (212234303) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 492208 + ... + 492638.

It is an arithmetic number, because the mean of its divisors is an integer number (9564480).

Almost surely, 2^212234313 is an apocalyptic number.

It is an amenable number.

212234313 is a deficient number, since it is larger than the sum of its proper divisors (93829047).

212234313 is a wasteful number, since it uses less digits than its factorization.

212234313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669.

The product of its digits is 864, while the sum is 21.

The square root of 212234313 is about 14568.2638979392. The cubic root of 212234313 is about 596.4927918746.

Adding to 212234313 its reverse (313432212), we get a palindrome (525666525).

The spelling of 212234313 in words is "two hundred twelve million, two hundred thirty-four thousand, three hundred thirteen".