33132434221 has 2 divisors, whose sum is σ = 33132434222. Its totient is φ = 33132434220.

The previous prime is 33132434173. The next prime is 33132434227. The reversal of 33132434221 is 12243423133.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32134506121 + 997928100 = 179261^2 + 31590^2 .

It is an emirp because it is prime and its reverse (12243423133) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33132434221 - 2⁹ = 33132433709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 33132434221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33132434227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16566217110 + 16566217111.

It is an arithmetic number, because the mean of its divisors is an integer number (16566217111).

Almost surely, 2^33132434221 is an apocalyptic number.

It is an amenable number.

33132434221 is a deficient number, since it is larger than the sum of its proper divisors (1).

33132434221 is an equidigital number, since it uses as much as digits as its factorization.

33132434221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 28.

Adding to 33132434221 its reverse (12243423133), we get a palindrome (45375857354).

The spelling of 33132434221 in words is "thirty-three billion, one hundred thirty-two million, four hundred thirty-four thousand, two hundred twenty-one".