12101224 has 16 divisors (see below), whose sum is σ = 22750020. Its totient is φ = 6034560.

The previous prime is 12101179. The next prime is 12101227. The reversal of 12101224 is 42210121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 9796900 + 2304324 = 3130^2 + 1518^2 .

It is not an unprimeable number, because it can be changed into a prime (12101227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1572 + ... + 5164.

Almost surely, 2^12101224 is an apocalyptic number.

It is an amenable number.

12101224 is a deficient number, since it is larger than the sum of its proper divisors (10648796).

12101224 is a wasteful number, since it uses less digits than its factorization.

12101224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4020 (or 4016 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 12101224 is about 3478.6813593659. The cubic root of 12101224 is about 229.5847833157.

Adding to 12101224 its reverse (42210121), we get a palindrome (54311345).

The spelling of 12101224 in words is "twelve million, one hundred one thousand, two hundred twenty-four".