1335221 has 4 divisors (see below), whose sum is σ = 1351392. Its totient is φ = 1319052.

The previous prime is 1335211. The next prime is 1335233. The reversal of 1335221 is 1225331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1335221 - 2⁶ = 1335157 is a prime.

It is a Duffinian number.

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 1335221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1335211) 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, 7961 + ... + 8126.

It is an arithmetic number, because the mean of its divisors is an integer number (337848).

2^1335221 is an apocalyptic number.

It is an amenable number.

1335221 is a deficient number, since it is larger than the sum of its proper divisors (16171).

1335221 is an equidigital number, since it uses as much as digits as its factorization.

1335221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16170.

The product of its digits is 180, while the sum is 17.

The square root of 1335221 is about 1155.5176329247. The cubic root of 1335221 is about 110.1161582872.

The spelling of 1335221 in words is "one million, three hundred thirty-five thousand, two hundred twenty-one".