1010020002281 has 2 divisors, whose sum is σ = 1010020002282. Its totient is φ = 1010020002280.

The previous prime is 1010020002221. The next prime is 1010020002283. The reversal of 1010020002281 is 1822000200101.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1009954651225 + 65351056 = 1004965^2 + 8084^2 .

It is an emirp because it is prime and its reverse (1822000200101) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1010020002281 is a prime.

It is a super-2 number, since 2×1010020002281² (a number of 25 digits) contains 22 as substring.

Together with 1010020002283, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1010020002283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505010001140 + 505010001141.

It is an arithmetic number, because the mean of its divisors is an integer number (505010001141).

Almost surely, 2^{1010020002281} is an apocalyptic number.

It is an amenable number.

1010020002281 is a deficient number, since it is larger than the sum of its proper divisors (1).

1010020002281 is an equidigital number, since it uses as much as digits as its factorization.

1010020002281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1010020002281 its reverse (1822000200101), we get a palindrome (2832020202382).

The spelling of 1010020002281 in words is "one trillion, ten billion, twenty million, two thousand, two hundred eighty-one".