33100221133 has 12 divisors (see below), whose sum is σ = 38936977020. Its totient is φ = 28052832192.

The previous prime is 33100221131. The next prime is 33100221149. The reversal of 33100221133 is 33112200133.

It can be written as a sum of positive squares in 2 ways, for example, as 8041964329 + 25058256804 = 89677^2 + 158298^2 .

It is not a de Polignac number, because 33100221133 - 2¹ = 33100221131 is a prime.

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 33100221133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33100221131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3790666 + ... + 3799387.

It is an arithmetic number, because the mean of its divisors is an integer number (3244748085).

Almost surely, 2^33100221133 is an apocalyptic number.

It is an amenable number.

33100221133 is a deficient number, since it is larger than the sum of its proper divisors (5836755887).

33100221133 is an equidigital number, since it uses as much as digits as its factorization.

33100221133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7590156 (or 7590149 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 33100221133 its reverse (33112200133), we get a palindrome (66212421266).

The spelling of 33100221133 in words is "thirty-three billion, one hundred million, two hundred twenty-one thousand, one hundred thirty-three".