12122213 has 8 divisors (see below), whose sum is σ = 12406176. Its totient is φ = 11840400.

The previous prime is 12122191. The next prime is 12122221. The reversal of 12122213 is 31222121.

It is a happy number.

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 12122213 - 2⁸ = 12121957 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 (12122263) 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 7 ways as a sum of consecutive naturals, for example, 17198 + ... + 17888.

It is an arithmetic number, because the mean of its divisors is an integer number (1550772).

Almost surely, 2^12122213 is an apocalyptic number.

It is an amenable number.

12122213 is a deficient number, since it is larger than the sum of its proper divisors (283963).

12122213 is an equidigital number, since it uses as much as digits as its factorization.

12122213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075.

The product of its digits is 48, while the sum is 14.

The square root of 12122213 is about 3481.6968564193. The cubic root of 12122213 is about 229.7174412940.

Adding to 12122213 its reverse (31222121), we get a palindrome (43344334).

The spelling of 12122213 in words is "twelve million, one hundred twenty-two thousand, two hundred thirteen".