12216253 has 16 divisors (see below), whose sum is σ = 14511744. Its totient is φ = 10065600.

The previous prime is 12216247. The next prime is 12216283. The reversal of 12216253 is 35261221.

It is a cyclic number.

It is not a de Polignac number, because 12216253 - 2¹³ = 12208061 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 (12216203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25926 + ... + 26392.

It is an arithmetic number, because the mean of its divisors is an integer number (906984).

Almost surely, 2^12216253 is an apocalyptic number.

It is an amenable number.

12216253 is a deficient number, since it is larger than the sum of its proper divisors (2295491).

12216253 is a wasteful number, since it uses less digits than its factorization.

12216253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612.

The product of its digits is 720, while the sum is 22.

The square root of 12216253 is about 3495.1756751271. The cubic root of 12216253 is about 230.3099350285.

Adding to 12216253 its reverse (35261221), we get a palindrome (47477474).

The spelling of 12216253 in words is "twelve million, two hundred sixteen thousand, two hundred fifty-three".