210022202011081 has 2 divisors, whose sum is σ = 210022202011082. Its totient is φ = 210022202011080.

The previous prime is 210022202011079. The next prime is 210022202011087. The reversal of 210022202011081 is 180110202220012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 188687586049600 + 21334615961481 = 13736360^2 + 4618941^2 .

It is a cyclic number.

It is not a de Polignac number, because 210022202011081 - 2¹ = 210022202011079 is a prime.

It is a super-3 number, since 3×210022202011081³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 210022202011079, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (210022202011087) 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, 105011101005540 + 105011101005541.

It is an arithmetic number, because the mean of its divisors is an integer number (105011101005541).

Almost surely, 2^{210022202011081} is an apocalyptic number.

It is an amenable number.

210022202011081 is a deficient number, since it is larger than the sum of its proper divisors (1).

210022202011081 is an equidigital number, since it uses as much as digits as its factorization.

210022202011081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 210022202011081 its reverse (180110202220012), we get a palindrome (390132404231093).

The spelling of 210022202011081 in words is "two hundred ten trillion, twenty-two billion, two hundred two million, eleven thousand, eighty-one".