12215633 has 2 divisors, whose sum is σ = 12215634. Its totient is φ = 12215632.

The previous prime is 12215611. The next prime is 12215653. The reversal of 12215633 is 33651221.

12215633 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10387729 + 1827904 = 3223^2 + 1352^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12215633 is a prime.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 12215599 and 12215608.

It is not a weakly prime, because it can be changed into another prime (12215653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6107816 + 6107817.

It is an arithmetic number, because the mean of its divisors is an integer number (6107817).

Almost surely, 2^12215633 is an apocalyptic number.

It is an amenable number.

12215633 is a deficient number, since it is larger than the sum of its proper divisors (1).

12215633 is an equidigital number, since it uses as much as digits as its factorization.

12215633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080, while the sum is 23.

The square root of 12215633 is about 3495.0869803197. The cubic root of 12215633 is about 230.3060387280.

Adding to 12215633 its reverse (33651221), we get a palindrome (45866854).

The spelling of 12215633 in words is "twelve million, two hundred fifteen thousand, six hundred thirty-three".