33330224561 has 4 divisors (see below), whose sum is σ = 33529806912. Its totient is φ = 33130642212.

The previous prime is 33330224519. The next prime is 33330224573. The reversal of 33330224561 is 16542203333.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33330224561 is a prime.

It is a super-2 number, since 2×33330224561² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (33330224591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99790925 + ... + 99791258.

It is an arithmetic number, because the mean of its divisors is an integer number (8382451728).

Almost surely, 2^33330224561 is an apocalyptic number.

It is an amenable number.

33330224561 is a deficient number, since it is larger than the sum of its proper divisors (199582351).

33330224561 is a wasteful number, since it uses less digits than its factorization.

33330224561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199582350.

The product of its (nonzero) digits is 38880, while the sum is 32.

Adding to 33330224561 its reverse (16542203333), we get a palindrome (49872427894).

The spelling of 33330224561 in words is "thirty-three billion, three hundred thirty million, two hundred twenty-four thousand, five hundred sixty-one".