33340121 has 2 divisors, whose sum is σ = 33340122. Its totient is φ = 33340120.

The previous prime is 33340103. The next prime is 33340141. The reversal of 33340121 is 12104333.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19360000 + 13980121 = 4400^2 + 3739^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33340121 is a prime.

It is a super-2 number, since 2×33340121² = 2223127336589282, which contains 22 as substring.

It is a Chen prime.

It is equal to p_2051324 and since 33340121 and 2051324 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 33340121.

It is not a weakly prime, because it can be changed into another prime (33340141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16670060 + 16670061.

It is an arithmetic number, because the mean of its divisors is an integer number (16670061).

Almost surely, 2^33340121 is an apocalyptic number.

It is an amenable number.

33340121 is a deficient number, since it is larger than the sum of its proper divisors (1).

33340121 is an equidigital number, since it uses as much as digits as its factorization.

33340121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 33340121 is about 5774.0904911510. The cubic root of 33340121 is about 321.8516381197.

Adding to 33340121 its reverse (12104333), we get a palindrome (45444454).

The spelling of 33340121 in words is "thirty-three million, three hundred forty thousand, one hundred twenty-one".