12225451 has 6 divisors (see below), whose sum is σ = 14221500. Its totient is φ = 10478916.

The previous prime is 12225427. The next prime is 12225461. The reversal of 12225451 is 15452221.

It is not a de Polignac number, because 12225451 - 2¹⁵ = 12192683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12225461) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 124701 + ... + 124798.

It is an arithmetic number, because the mean of its divisors is an integer number (2370250).

Almost surely, 2^12225451 is an apocalyptic number.

12225451 is a deficient number, since it is larger than the sum of its proper divisors (1996049).

12225451 is an equidigital number, since it uses as much as digits as its factorization.

12225451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249513 (or 249506 counting only the distinct ones).

The product of its digits is 800, while the sum is 22.

The square root of 12225451 is about 3496.4912412303. The cubic root of 12225451 is about 230.3677230517.

Adding to 12225451 its reverse (15452221), we get a palindrome (27677672).

The spelling of 12225451 in words is "twelve million, two hundred twenty-five thousand, four hundred fifty-one".