12100223 has 2 divisors, whose sum is σ = 12100224. Its totient is φ = 12100222.

The previous prime is 12100219. The next prime is 12100229. The reversal of 12100223 is 32200121.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12100223 - 2² = 12100219 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12100229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6050111 + 6050112.

It is an arithmetic number, because the mean of its divisors is an integer number (6050112).

Almost surely, 2^12100223 is an apocalyptic number.

12100223 is a deficient number, since it is larger than the sum of its proper divisors (1).

12100223 is an equidigital number, since it uses as much as digits as its factorization.

12100223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 12100223 is about 3478.5374800338. The cubic root of 12100223 is about 229.5784528072.

Adding to 12100223 its reverse (32200121), we get a palindrome (44300344).

The spelling of 12100223 in words is "twelve million, one hundred thousand, two hundred twenty-three".