12210541 has 4 divisors (see below), whose sum is σ = 13954912. Its totient is φ = 10466172.

The previous prime is 12210503. The next prime is 12210563. The reversal of 12210541 is 14501221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12210541 - 2¹⁹ = 11686253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12210041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 872175 + ... + 872188.

It is an arithmetic number, because the mean of its divisors is an integer number (3488728).

Almost surely, 2^12210541 is an apocalyptic number.

It is an amenable number.

12210541 is a deficient number, since it is larger than the sum of its proper divisors (1744371).

12210541 is an equidigital number, since it uses as much as digits as its factorization.

12210541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1744370.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 12210541 is about 3494.3584532787. The cubic root of 12210541 is about 230.2740338009.

Adding to 12210541 its reverse (14501221), we get a palindrome (26711762).

The spelling of 12210541 in words is "twelve million, two hundred ten thousand, five hundred forty-one".