12261225 has 12 divisors (see below), whose sum is σ = 20272016. Its totient is φ = 6539280.

The previous prime is 12261211. The next prime is 12261253. The reversal of 12261225 is 52216221.

It is a happy number.

12261225 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12261225 - 2⁹ = 12260713 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81667 + ... + 81816.

Almost surely, 2^12261225 is an apocalyptic number.

12261225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12261225 is a deficient number, since it is larger than the sum of its proper divisors (8010791).

12261225 is a wasteful number, since it uses less digits than its factorization.

12261225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163496 (or 163491 counting only the distinct ones).

The product of its digits is 480, while the sum is 21.

The square root of 12261225 is about 3501.6032042480. The cubic root of 12261225 is about 230.5922041922.

Adding to 12261225 its reverse (52216221), we get a palindrome (64477446).

The spelling of 12261225 in words is "twelve million, two hundred sixty-one thousand, two hundred twenty-five".