1180221 has 16 divisors (see below), whose sum is σ = 1841664. Its totient is φ = 658224.

The previous prime is 1180219. The next prime is 1180237. The reversal of 1180221 is 1220811.

It is not a de Polignac number, because 1180221 - 2¹ = 1180219 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1180221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1180241) 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, 250 + ... + 1556.

It is an arithmetic number, because the mean of its divisors is an integer number (115104).

2^1180221 is an apocalyptic number.

It is an amenable number.

1180221 is a deficient number, since it is larger than the sum of its proper divisors (661443).

1180221 is a wasteful number, since it uses less digits than its factorization.

1180221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1360.

The product of its (nonzero) digits is 32, while the sum is 15.

The square root of 1180221 is about 1086.3797678528. The cubic root of 1180221 is about 105.6787771626.

The spelling of 1180221 in words is "one million, one hundred eighty thousand, two hundred twenty-one".