3312121 has 4 divisors (see below), whose sum is σ = 3334500. Its totient is φ = 3289744.

The previous prime is 3312109. The next prime is 3312139. The reversal of 3312121 is 1212133.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1212133 = 13 ⋅93241.

It can be written as a sum of positive squares in 2 ways, for example, as 622521 + 2689600 = 789^2 + 1640^2 .

It is a cyclic number.

It is not a de Polignac number, because 3312121 - 2¹⁷ = 3181049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3312151) 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, 10966 + ... + 11263.

It is an arithmetic number, because the mean of its divisors is an integer number (833625).

Almost surely, 2^3312121 is an apocalyptic number.

It is an amenable number.

3312121 is a deficient number, since it is larger than the sum of its proper divisors (22379).

3312121 is a wasteful number, since it uses less digits than its factorization.

3312121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22378.

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

The square root of 3312121 is about 1819.9233500343. The cubic root of 3312121 is about 149.0626135056.

Adding to 3312121 its reverse (1212133), we get a palindrome (4524254).

It can be divided in two parts, 33 and 12121, that multiplied together give a palindrome (399993).

The spelling of 3312121 in words is "three million, three hundred twelve thousand, one hundred twenty-one".