21202132203533 has 2 divisors, whose sum is σ = 21202132203534. Its totient is φ = 21202132203532.

The previous prime is 21202132203529. The next prime is 21202132203559. The reversal of 21202132203533 is 33530223120212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20947079932804 + 255052270729 = 4576798^2 + 505027^2 .

It is a cyclic number.

It is not a de Polignac number, because 21202132203533 - 2² = 21202132203529 is a prime.

It is a super-2 number, since 2×21202132203533² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21202132203496 and 21202132203505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21202132203503) 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, 10601066101766 + 10601066101767.

It is an arithmetic number, because the mean of its divisors is an integer number (10601066101767).

Almost surely, 2^{21202132203533} is an apocalyptic number.

It is an amenable number.

21202132203533 is a deficient number, since it is larger than the sum of its proper divisors (1).

21202132203533 is an equidigital number, since it uses as much as digits as its factorization.

21202132203533 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 29.

Adding to 21202132203533 its reverse (33530223120212), we get a palindrome (54732355323745).

The spelling of 21202132203533 in words is "twenty-one trillion, two hundred two billion, one hundred thirty-two million, two hundred three thousand, five hundred thirty-three".