1082221 has 16 divisors (see below), whose sum is σ = 1331200. Its totient is φ = 859248.

The previous prime is 1082209. The next prime is 1082231. The reversal of 1082221 is 1222801.

It is a cyclic number.

It is not a de Polignac number, because 1082221 - 2⁵ = 1082189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1082195 and 1082204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1082231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10456 + ... + 10558.

It is an arithmetic number, because the mean of its divisors is an integer number (83200).

2^1082221 is an apocalyptic number.

It is an amenable number.

1082221 is a deficient number, since it is larger than the sum of its proper divisors (248979).

1082221 is a wasteful number, since it uses less digits than its factorization.

1082221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 1082221 is about 1040.2985148504. The cubic root of 1082221 is about 102.6688393217.

The spelling of 1082221 in words is "one million, eighty-two thousand, two hundred twenty-one".