8210201421533 has 2 divisors, whose sum is σ = 8210201421534. Its totient is φ = 8210201421532.

The previous prime is 8210201421451. The next prime is 8210201421571. The reversal of 8210201421533 is 3351241020128.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8120921176729 + 89280244804 = 2849723^2 + 298798^2 .

It is a cyclic number.

It is not a de Polignac number, because 8210201421533 - 2¹⁸ = 8210201159389 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8210201421533.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8210201421133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4105100710766 + 4105100710767.

It is an arithmetic number, because the mean of its divisors is an integer number (4105100710767).

Almost surely, 2^{8210201421533} is an apocalyptic number.

It is an amenable number.

8210201421533 is a deficient number, since it is larger than the sum of its proper divisors (1).

8210201421533 is an equidigital number, since it uses as much as digits as its factorization.

8210201421533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 32.

The spelling of 8210201421533 in words is "eight trillion, two hundred ten billion, two hundred one million, four hundred twenty-one thousand, five hundred thirty-three".