12224961 has 36 divisors (see below), whose sum is σ = 21637200. Its totient is φ = 6613488.

The previous prime is 12224959. The next prime is 12224963. The reversal of 12224961 is 16942221.

It is an interprime number because it is at equal distance from previous prime (12224959) and next prime (12224963).

It is not a de Polignac number, because 12224961 - 2¹ = 12224959 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12224963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 7650 + ... + 9108.

Almost surely, 2^12224961 is an apocalyptic number.

It is an amenable number.

12224961 is a deficient number, since it is larger than the sum of its proper divisors (9412239).

12224961 is a wasteful number, since it uses less digits than its factorization.

12224961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1498 (or 1488 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 12224961 is about 3496.4211702826. The cubic root of 12224961 is about 230.3646452732.

The spelling of 12224961 in words is "twelve million, two hundred twenty-four thousand, nine hundred sixty-one".