21202233373 has 2 divisors, whose sum is σ = 21202233374. Its totient is φ = 21202233372.

The previous prime is 21202233347. The next prime is 21202233397. The reversal of 21202233373 is 37333220212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14352519204 + 6849714169 = 119802^2 + 82763^2 .

It is a cyclic number.

It is not a de Polignac number, because 21202233373 - 2¹⁷ = 21202102301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21202233673) 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, 10601116686 + 10601116687.

It is an arithmetic number, because the mean of its divisors is an integer number (10601116687).

Almost surely, 2^21202233373 is an apocalyptic number.

It is an amenable number.

21202233373 is a deficient number, since it is larger than the sum of its proper divisors (1).

21202233373 is an equidigital number, since it uses as much as digits as its factorization.

21202233373 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 28.

Adding to 21202233373 its reverse (37333220212), we get a palindrome (58535453585).

The spelling of 21202233373 in words is "twenty-one billion, two hundred two million, two hundred thirty-three thousand, three hundred seventy-three".