65212213 has 8 divisors (see below), whose sum is σ = 73594080. Its totient is φ = 57239280.

The previous prime is 65212211. The next prime is 65212223. The reversal of 65212213 is 31221256.

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 65212213 - 2¹ = 65212211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65212211) 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, 101895 + ... + 102532.

It is an arithmetic number, because the mean of its divisors is an integer number (9199260).

Almost surely, 2^65212213 is an apocalyptic number.

It is an amenable number.

65212213 is a deficient number, since it is larger than the sum of its proper divisors (8381867).

65212213 is a wasteful number, since it uses less digits than its factorization.

65212213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204467.

The product of its digits is 720, while the sum is 22.

The square root of 65212213 is about 8075.4079153935. The cubic root of 65212213 is about 402.5096647757.

Adding to 65212213 its reverse (31221256), we get a palindrome (96433469).

The spelling of 65212213 in words is "sixty-five million, two hundred twelve thousand, two hundred thirteen".