33501121 has 2 divisors, whose sum is σ = 33501122. Its totient is φ = 33501120.

The previous prime is 33501079. The next prime is 33501163. The reversal of 33501121 is 12110533.

It is a balanced prime because it is at equal distance from previous prime (33501079) and next prime (33501163).

It can be written as a sum of positive squares in only one way, i.e., 31640625 + 1860496 = 5625^2 + 1364^2 .

It is an emirp because it is prime and its reverse (12110533) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33501121 - 2¹¹ = 33499073 is a prime.

It is a super-2 number, since 2×33501121² = 2244650216513282, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33501095 and 33501104.

It is not a weakly prime, because it can be changed into another prime (33501191) 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, 16750560 + 16750561.

It is an arithmetic number, because the mean of its divisors is an integer number (16750561).

Almost surely, 2^33501121 is an apocalyptic number.

It is an amenable number.

33501121 is a deficient number, since it is larger than the sum of its proper divisors (1).

33501121 is an equidigital number, since it uses as much as digits as its factorization.

33501121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 33501121 is about 5788.0152902355. The cubic root of 33501121 is about 322.3688820594.

Adding to 33501121 its reverse (12110533), we get a palindrome (45611654).

The spelling of 33501121 in words is "thirty-three million, five hundred one thousand, one hundred twenty-one".