1241221 has 4 divisors (see below), whose sum is σ = 1314252. Its totient is φ = 1168192.

The previous prime is 1241203. The next prime is 1241243. The reversal of 1241221 is 1221421.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 980100 + 261121 = 990^2 + 511^2 .

It is a cyclic number.

It is not a de Polignac number, because 1241221 - 2⁹ = 1240709 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 (1241291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36490 + ... + 36523.

It is an arithmetic number, because the mean of its divisors is an integer number (328563).

2^1241221 is an apocalyptic number.

It is an amenable number.

1241221 is a deficient number, since it is larger than the sum of its proper divisors (73031).

1241221 is an equidigital number, since it uses as much as digits as its factorization.

1241221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73030.

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

The square root of 1241221 is about 1114.1009828557. The cubic root of 1241221 is about 107.4689580463.

Adding to 1241221 its reverse (1221421), we get a palindrome (2462642).

The spelling of 1241221 in words is "one million, two hundred forty-one thousand, two hundred twenty-one".