12221041 has 12 divisors (see below), whose sum is σ = 14273712. Its totient is φ = 10432968.

The previous prime is 12221039. The next prime is 12221057. The reversal of 12221041 is 14012221.

It is a happy number.

It is not a de Polignac number, because 12221041 - 2¹ = 12221039 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12221021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21426 + ... + 21988.

It is an arithmetic number, because the mean of its divisors is an integer number (1189476).

Almost surely, 2^12221041 is an apocalyptic number.

It is an amenable number.

12221041 is a deficient number, since it is larger than the sum of its proper divisors (2052671).

12221041 is an equidigital number, since it uses as much as digits as its factorization.

12221041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020 (or 1013 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 12221041 is about 3495.8605521388. The cubic root of 12221041 is about 230.3400200836.

Adding to 12221041 its reverse (14012221), we get a palindrome (26233262).

The spelling of 12221041 in words is "twelve million, two hundred twenty-one thousand, forty-one".