33220133305 has 4 divisors (see below), whose sum is σ = 39864159972. Its totient is φ = 26576106640.

The previous prime is 33220133269. The next prime is 33220133341. The reversal of 33220133305 is 50333102233.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (33220133269) and next prime (33220133341).

It can be written as a sum of positive squares in 2 ways, for example, as 24831771561 + 8388361744 = 157581^2 + 91588^2 .

It is not a de Polignac number, because 33220133305 - 2⁹ = 33220132793 is a prime.

It is a super-2 number, since 2×33220133305² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 33220133305.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 3322013326 + ... + 3322013335.

It is an arithmetic number, because the mean of its divisors is an integer number (9966039993).

Almost surely, 2^33220133305 is an apocalyptic number.

It is an amenable number.

33220133305 is a deficient number, since it is larger than the sum of its proper divisors (6644026667).

33220133305 is an equidigital number, since it uses as much as digits as its factorization.

33220133305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6644026666.

The product of its (nonzero) digits is 4860, while the sum is 25.

Adding to 33220133305 its reverse (50333102233), we get a palindrome (83553235538).

The spelling of 33220133305 in words is "thirty-three billion, two hundred twenty million, one hundred thirty-three thousand, three hundred five".