12205514 has 4 divisors (see below), whose sum is σ = 18308274. Its totient is φ = 6102756.

The previous prime is 12205511. The next prime is 12205553. The reversal of 12205514 is 41550221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41550221 = 1013 ⋅41017.

It can be written as a sum of positive squares in only one way, i.e., 10029889 + 2175625 = 3167^2 + 1475^2 .

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (12205511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3051377 + ... + 3051380.

Almost surely, 2^12205514 is an apocalyptic number.

12205514 is a deficient number, since it is larger than the sum of its proper divisors (6102760).

12205514 is an equidigital number, since it uses as much as digits as its factorization.

12205514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6102759.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 12205514 is about 3493.6390769511. The cubic root of 12205514 is about 230.2424286912.

Adding to 12205514 its reverse (41550221), we get a palindrome (53755735).

The spelling of 12205514 in words is "twelve million, two hundred five thousand, five hundred fourteen".