102010211222281 has 2 divisors, whose sum is σ = 102010211222282. Its totient is φ = 102010211222280.

The previous prime is 102010211222197. The next prime is 102010211222357. The reversal of 102010211222281 is 182222112010201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101020912439056 + 989298783225 = 10050916^2 + 994635^2 .

It is a cyclic number.

It is not a de Polignac number, because 102010211222281 - 2²³ = 102010202833673 is a prime.

It is a super-2 number, since 2×102010211222281² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (102010211226281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51005105611140 + 51005105611141.

It is an arithmetic number, because the mean of its divisors is an integer number (51005105611141).

Almost surely, 2^{102010211222281} is an apocalyptic number.

It is an amenable number.

102010211222281 is a deficient number, since it is larger than the sum of its proper divisors (1).

102010211222281 is an equidigital number, since it uses as much as digits as its factorization.

102010211222281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 512, while the sum is 25.

Adding to 102010211222281 its reverse (182222112010201), we get a palindrome (284232323232482).

The spelling of 102010211222281 in words is "one hundred two trillion, ten billion, two hundred eleven million, two hundred twenty-two thousand, two hundred eighty-one".