202201221002281 has 2 divisors, whose sum is σ = 202201221002282. Its totient is φ = 202201221002280.

The previous prime is 202201221002279. The next prime is 202201221002293. The reversal of 202201221002281 is 182200122102202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 129647622736681 + 72553598265600 = 11386291^2 + 8517840^2 .

It is a cyclic number.

It is not a de Polignac number, because 202201221002281 - 2¹ = 202201221002279 is a prime.

It is a super-2 number, since 2×202201221002281² (a number of 29 digits) contains 22 as substring.

Together with 202201221002279, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (202201221002681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101100610501140 + 101100610501141.

It is an arithmetic number, because the mean of its divisors is an integer number (101100610501141).

Almost surely, 2^{202201221002281} is an apocalyptic number.

It is an amenable number.

202201221002281 is a deficient number, since it is larger than the sum of its proper divisors (1).

202201221002281 is an equidigital number, since it uses as much as digits as its factorization.

202201221002281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1024, while the sum is 25.

Adding to 202201221002281 its reverse (182200122102202), we get a palindrome (384401343104483).

The spelling of 202201221002281 in words is "two hundred two trillion, two hundred one billion, two hundred twenty-one million, two thousand, two hundred eighty-one".