1189221 has 8 divisors (see below), whose sum is σ = 1729824. Its totient is φ = 720720.

The previous prime is 1189219. The next prime is 1189231. The reversal of 1189221 is 1229811.

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

It is not a de Polignac number, because 1189221 - 2¹ = 1189219 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

1189221 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1189191 and 1189200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1189231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17986 + ... + 18051.

It is an arithmetic number, because the mean of its divisors is an integer number (216228).

2^1189221 is an apocalyptic number.

1189221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1189221 is a deficient number, since it is larger than the sum of its proper divisors (540603).

1189221 is a wasteful number, since it uses less digits than its factorization.

1189221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36051.

The product of its digits is 288, while the sum is 24.

The square root of 1189221 is about 1090.5140989460. The cubic root of 1189221 is about 105.9467217719.

It can be divided in two parts, 118 and 9221, that added together give a palindrome (9339).

The spelling of 1189221 in words is "one million, one hundred eighty-nine thousand, two hundred twenty-one".