1141221 has 8 divisors (see below), whose sum is σ = 1530144. Its totient is φ = 756560.

The previous prime is 1141219. The next prime is 1141223. The reversal of 1141221 is 1221411.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1141219) and next prime (1141223).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1141221 - 2¹ = 1141219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1141197 and 1141206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1141223) 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 7 ways as a sum of consecutive naturals, for example, 375 + ... + 1556.

It is an arithmetic number, because the mean of its divisors is an integer number (191268).

2^1141221 is an apocalyptic number.

It is an amenable number.

1141221 is a deficient number, since it is larger than the sum of its proper divisors (388923).

1141221 is a wasteful number, since it uses less digits than its factorization.

1141221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2131.

The product of its digits is 16, while the sum is 12.

The square root of 1141221 is about 1068.2794578199. The cubic root of 1141221 is about 104.5016749959.

Adding to 1141221 its reverse (1221411), we get a palindrome (2362632).

The spelling of 1141221 in words is "one million, one hundred forty-one thousand, two hundred twenty-one".