33103133221 has 2 divisors, whose sum is σ = 33103133222. Its totient is φ = 33103133220.

The previous prime is 33103133183. The next prime is 33103133251. The reversal of 33103133221 is 12233130133.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29476082596 + 3627050625 = 171686^2 + 60225^2 .

It is a cyclic number.

It is not a de Polignac number, because 33103133221 - 2⁹ = 33103132709 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 33103133192 and 33103133201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33103133251) 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 as a sum of consecutive naturals, namely, 16551566610 + 16551566611.

It is an arithmetic number, because the mean of its divisors is an integer number (16551566611).

Almost surely, 2^33103133221 is an apocalyptic number.

It is an amenable number.

33103133221 is a deficient number, since it is larger than the sum of its proper divisors (1).

33103133221 is an equidigital number, since it uses as much as digits as its factorization.

33103133221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 33103133221 its reverse (12233130133), we get a palindrome (45336263354).

The spelling of 33103133221 in words is "thirty-three billion, one hundred three million, one hundred thirty-three thousand, two hundred twenty-one".