2010020202181 has 2 divisors, whose sum is σ = 2010020202182. Its totient is φ = 2010020202180.

The previous prime is 2010020202103. The next prime is 2010020202199. The reversal of 2010020202181 is 1812020200102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1544713408225 + 465306793956 = 1242865^2 + 682134^2 .

It is a cyclic number.

It is not a de Polignac number, because 2010020202181 - 2¹³ = 2010020193989 is a prime.

It is a super-2 number, since 2×2010020202181² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2010020002181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005010101090 + 1005010101091.

It is an arithmetic number, because the mean of its divisors is an integer number (1005010101091).

Almost surely, 2^{2010020202181} is an apocalyptic number.

It is an amenable number.

2010020202181 is a deficient number, since it is larger than the sum of its proper divisors (1).

2010020202181 is an equidigital number, since it uses as much as digits as its factorization.

2010020202181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 2010020202181 its reverse (1812020200102), we get a palindrome (3822040402283).

The spelling of 2010020202181 in words is "two trillion, ten billion, twenty million, two hundred two thousand, one hundred eighty-one".