3321121 has 4 divisors (see below), whose sum is σ = 3351700. Its totient is φ = 3290544.

The previous prime is 3321119. The next prime is 3321151. The reversal of 3321121 is 1211233.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1211233 = 17 ⋅71249.

It can be written as a sum of positive squares in 2 ways, for example, as 2030625 + 1290496 = 1425^2 + 1136^2 .

It is a cyclic number.

It is not a de Polignac number, because 3321121 - 2¹ = 3321119 is a prime.

It is a super-2 number, since 2×3321121² = 22059689393282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3321151) 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, 15126 + ... + 15343.

It is an arithmetic number, because the mean of its divisors is an integer number (837925).

Almost surely, 2^3321121 is an apocalyptic number.

It is an amenable number.

3321121 is a deficient number, since it is larger than the sum of its proper divisors (30579).

3321121 is a wasteful number, since it uses less digits than its factorization.

3321121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30578.

The product of its digits is 36, while the sum is 13.

The square root of 3321121 is about 1822.3943042053. The cubic root of 3321121 is about 149.1975069483.

Adding to 3321121 its reverse (1211233), we get a palindrome (4532354).

The spelling of 3321121 in words is "three million, three hundred twenty-one thousand, one hundred twenty-one".