33222302021 has 2 divisors, whose sum is σ = 33222302022. Its totient is φ = 33222302020.

The previous prime is 33222301997. The next prime is 33222302033. The reversal of 33222302021 is 12020322233.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20189568100 + 13032733921 = 142090^2 + 114161^2 .

It is a cyclic number.

It is not a de Polignac number, because 33222302021 - 2¹⁰ = 33222300997 is a prime.

It is a super-2 number, since 2×33222302021² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 33222301984 and 33222302002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33222302041) by changing a digit.

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 as a sum of consecutive naturals, namely, 16611151010 + 16611151011.

It is an arithmetic number, because the mean of its divisors is an integer number (16611151011).

Almost surely, 2^33222302021 is an apocalyptic number.

It is an amenable number.

33222302021 is a deficient number, since it is larger than the sum of its proper divisors (1).

33222302021 is an equidigital number, since it uses as much as digits as its factorization.

33222302021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 33222302021 its reverse (12020322233), we get a palindrome (45242624254).

The spelling of 33222302021 in words is "thirty-three billion, two hundred twenty-two million, three hundred two thousand, twenty-one".