33112200133 has 4 divisors (see below), whose sum is σ = 33655023148. Its totient is φ = 32569377120.

The previous prime is 33112200131. The next prime is 33112200139. The reversal of 33112200133 is 33100221133.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6935225284 + 26176974849 = 83278^2 + 161793^2 .

It is a cyclic number.

It is not a de Polignac number, because 33112200133 - 2¹ = 33112200131 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 33112200133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33112200131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 271411416 + ... + 271411537.

It is an arithmetic number, because the mean of its divisors is an integer number (8413755787).

Almost surely, 2^33112200133 is an apocalyptic number.

It is an amenable number.

33112200133 is a deficient number, since it is larger than the sum of its proper divisors (542823015).

33112200133 is an equidigital number, since it uses as much as digits as its factorization.

33112200133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542823014.

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

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

The spelling of 33112200133 in words is "thirty-three billion, one hundred twelve million, two hundred thousand, one hundred thirty-three".