68226213 has 12 divisors (see below), whose sum is σ = 99990464. Its totient is φ = 41349000.

The previous prime is 68226209. The next prime is 68226229. The reversal of 68226213 is 31262286.

It is not a de Polignac number, because 68226213 - 2² = 68226209 is a prime.

It is a super-2 number, since 2×68226213² = 9309632280642738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68226203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 93613 + ... + 94338.

Almost surely, 2^68226213 is an apocalyptic number.

It is an amenable number.

68226213 is a deficient number, since it is larger than the sum of its proper divisors (31764251).

68226213 is a wasteful number, since it uses less digits than its factorization.

68226213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187976 (or 187965 counting only the distinct ones).

The product of its digits is 6912, while the sum is 30.

The square root of 68226213 is about 8259.9160407355. The cubic root of 68226213 is about 408.6176187565.

Adding to 68226213 its reverse (31262286), we get a palindrome (99488499).

The spelling of 68226213 in words is "sixty-eight million, two hundred twenty-six thousand, two hundred thirteen".