212232317 has 8 divisors (see below), whose sum is σ = 233217792. Its totient is φ = 191528800.

The previous prime is 212232311. The next prime is 212232329. The reversal of 212232317 is 713232212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212232317 - 2²⁴ = 195455101 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 212232292 and 212232301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212232311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68909 + ... + 71922.

It is an arithmetic number, because the mean of its divisors is an integer number (29152224).

Almost surely, 2^212232317 is an apocalyptic number.

It is an amenable number.

212232317 is a deficient number, since it is larger than the sum of its proper divisors (20985475).

212232317 is a wasteful number, since it uses less digits than its factorization.

212232317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140979.

The product of its digits is 1008, while the sum is 23.

The square root of 212232317 is about 14568.1953927039. The cubic root of 212232317 is about 596.4909219235.

Adding to 212232317 its reverse (713232212), we get a palindrome (925464529).

The spelling of 212232317 in words is "two hundred twelve million, two hundred thirty-two thousand, three hundred seventeen".