1332021 has 4 divisors (see below), whose sum is σ = 1776032. Its totient is φ = 888012.

The previous prime is 1332017. The next prime is 1332047. The reversal of 1332021 is 1202331.

It is a happy number.

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 not a de Polignac number, because 1332021 - 2² = 1332017 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1331988 and 1332006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1332421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222001 + ... + 222006.

It is an arithmetic number, because the mean of its divisors is an integer number (444008).

2^1332021 is an apocalyptic number.

It is an amenable number.

1332021 is a deficient number, since it is larger than the sum of its proper divisors (444011).

1332021 is an equidigital number, since it uses as much as digits as its factorization.

1332021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444010.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 1332021 is about 1154.1321414812. The cubic root of 1332021 is about 110.0281195329.

Adding to 1332021 its reverse (1202331), we get a palindrome (2534352).

The spelling of 1332021 in words is "one million, three hundred thirty-two thousand, twenty-one".