1179221 has 4 divisors (see below), whose sum is σ = 1182444. Its totient is φ = 1176000.

The previous prime is 1179203. The next prime is 1179223. The reversal of 1179221 is 1229711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1229711 = 7 ⋅175673.

It can be written as a sum of positive squares in 2 ways, for example, as 207025 + 972196 = 455^2 + 986^2 .

It is a cyclic number.

It is not a de Polignac number, because 1179221 - 2¹⁰ = 1178197 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 (1179223) 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, 980 + ... + 1821.

It is an arithmetic number, because the mean of its divisors is an integer number (295611).

2^1179221 is an apocalyptic number.

It is an amenable number.

1179221 is a deficient number, since it is larger than the sum of its proper divisors (3223).

1179221 is an equidigital number, since it uses as much as digits as its factorization.

1179221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3222.

The product of its digits is 252, while the sum is 23.

The square root of 1179221 is about 1085.9194261086. The cubic root of 1179221 is about 105.6489215569.

The spelling of 1179221 in words is "one million, one hundred seventy-nine thousand, two hundred twenty-one".