10020201222181 has 2 divisors, whose sum is σ = 10020201222182. Its totient is φ = 10020201222180.

The previous prime is 10020201222179. The next prime is 10020201222247. The reversal of 10020201222181 is 18122210202001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6453296831556 + 3566904390625 = 2540334^2 + 1888625^2 .

It is a cyclic number.

It is not a de Polignac number, because 10020201222181 - 2¹ = 10020201222179 is a prime.

It is a super-2 number, since 2×10020201222181² (a number of 27 digits) contains 22 as substring.

Together with 10020201222179, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10020201220181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5010100611090 + 5010100611091.

It is an arithmetic number, because the mean of its divisors is an integer number (5010100611091).

Almost surely, 2^{10020201222181} is an apocalyptic number.

It is an amenable number.

10020201222181 is a deficient number, since it is larger than the sum of its proper divisors (1).

10020201222181 is an equidigital number, since it uses as much as digits as its factorization.

10020201222181 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 10020201222181 its reverse (18122210202001), we get a palindrome (28142411424182).

The spelling of 10020201222181 in words is "ten trillion, twenty billion, two hundred one million, two hundred twenty-two thousand, one hundred eighty-one".