12106223 has 2 divisors, whose sum is σ = 12106224. Its totient is φ = 12106222.

The previous prime is 12106219. The next prime is 12106231. The reversal of 12106223 is 32260121.

It is a weak prime.

It is an emirp because it is prime and its reverse (32260121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12106223 - 2² = 12106219 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12106823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6053111 + 6053112.

It is an arithmetic number, because the mean of its divisors is an integer number (6053112).

Almost surely, 2^12106223 is an apocalyptic number.

12106223 is a deficient number, since it is larger than the sum of its proper divisors (1).

12106223 is an equidigital number, since it uses as much as digits as its factorization.

12106223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 12106223 is about 3479.3998045640. The cubic root of 12106223 is about 229.6163926893.

Adding to 12106223 its reverse (32260121), we get a palindrome (44366344).

The spelling of 12106223 in words is "twelve million, one hundred six thousand, two hundred twenty-three".