1333221 has 8 divisors (see below), whose sum is σ = 1825824. Its totient is φ = 864720.

The previous prime is 1333219. The next prime is 1333231. The reversal of 1333221 is 1223331.

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

It is not a de Polignac number, because 1333221 - 2¹ = 1333219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1333221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1333231) 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, 5895 + ... + 6116.

It is an arithmetic number, because the mean of its divisors is an integer number (228228).

2^1333221 is an apocalyptic number.

It is an amenable number.

1333221 is a deficient number, since it is larger than the sum of its proper divisors (492603).

1333221 is a wasteful number, since it uses less digits than its factorization.

1333221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12051.

The product of its digits is 108, while the sum is 15.

The square root of 1333221 is about 1154.6518955945. The cubic root of 1333221 is about 110.0611505722.

Adding to 1333221 its reverse (1223331), we get a palindrome (2556552).

It can be divided in two parts, 13332 and 21, that multiplied together give a palindrome (279972).

The spelling of 1333221 in words is "one million, three hundred thirty-three thousand, two hundred twenty-one".