12211441 has 12 divisors (see below), whose sum is σ = 13740496. Its totient is φ = 10838520.

The previous prime is 12211421. The next prime is 12211447. The reversal of 12211441 is 14411221.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-12211441 is a prime.

It is a zygodrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (12211447) 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 11 ways as a sum of consecutive naturals, for example, 4030 + ... + 6376.

Almost surely, 2^12211441 is an apocalyptic number.

12211441 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12211441 is a deficient number, since it is larger than the sum of its proper divisors (1529055).

12211441 is a wasteful number, since it uses less digits than its factorization.

12211441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2412 (or 2401 counting only the distinct ones).

The product of its digits is 64, while the sum is 16.

The square root of 12211441 is about 3494.4872299094. The cubic root of 12211441 is about 230.2796912499.

Adding to 12211441 its reverse (14411221), we get a palindrome (26622662).

It can be divided in two parts, 1221 and 1441, that added together give a palindrome (2662).

The spelling of 12211441 in words is "twelve million, two hundred eleven thousand, four hundred forty-one".