12224541 has 16 divisors (see below), whose sum is σ = 19132544. Its totient is φ = 6796224.

The previous prime is 12224521. The next prime is 12224551. The reversal of 12224541 is 14542221.

It is not a de Polignac number, because 12224541 - 2⁷ = 12224413 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12224501) 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 15 ways as a sum of consecutive naturals, for example, 7090 + ... + 8643.

It is an arithmetic number, because the mean of its divisors is an integer number (1195784).

Almost surely, 2^12224541 is an apocalyptic number.

It is an amenable number.

12224541 is a deficient number, since it is larger than the sum of its proper divisors (6908003).

12224541 is a wasteful number, since it uses less digits than its factorization.

12224541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15780.

The product of its digits is 640, while the sum is 21.

The square root of 12224541 is about 3496.3611083525. The cubic root of 12224541 is about 230.3620071118.

Adding to 12224541 its reverse (14542221), we get a palindrome (26766762).

The spelling of 12224541 in words is "twelve million, two hundred twenty-four thousand, five hundred forty-one".