201021101202253 has 2 divisors, whose sum is σ = 201021101202254. Its totient is φ = 201021101202252.

The previous prime is 201021101202197. The next prime is 201021101202347. The reversal of 201021101202253 is 352202101120102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 148742098904169 + 52279002298084 = 12195987^2 + 7230422^2 .

It is a cyclic number.

It is not a de Polignac number, because 201021101202253 - 2¹⁷ = 201021101071181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201021101202353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100510550601126 + 100510550601127.

It is an arithmetic number, because the mean of its divisors is an integer number (100510550601127).

Almost surely, 2^{201021101202253} is an apocalyptic number.

It is an amenable number.

201021101202253 is a deficient number, since it is larger than the sum of its proper divisors (1).

201021101202253 is an equidigital number, since it uses as much as digits as its factorization.

201021101202253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 22.

Adding to 201021101202253 its reverse (352202101120102), we get a palindrome (553223202322355).

The spelling of 201021101202253 in words is "two hundred one trillion, twenty-one billion, one hundred one million, two hundred two thousand, two hundred fifty-three".