122217229 has 4 divisors (see below), whose sum is σ = 122649376. Its totient is φ = 121785084.

The previous prime is 122217149. The next prime is 122217259. The reversal of 122217229 is 922712221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 122217229 - 2¹⁷ = 122086157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122217197 and 122217206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122217259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215649 + ... + 216214.

It is an arithmetic number, because the mean of its divisors is an integer number (30662344).

Almost surely, 2^122217229 is an apocalyptic number.

It is an amenable number.

122217229 is a deficient number, since it is larger than the sum of its proper divisors (432147).

122217229 is an equidigital number, since it uses as much as digits as its factorization.

122217229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432146.

The product of its digits is 2016, while the sum is 28.

The square root of 122217229 is about 11055.1901385729. The cubic root of 122217229 is about 496.2617594347.

The spelling of 122217229 in words is "one hundred twenty-two million, two hundred seventeen thousand, two hundred twenty-nine".