2020002112181 has 2 divisors, whose sum is σ = 2020002112182. Its totient is φ = 2020002112180.

The previous prime is 2020002112157. The next prime is 2020002112307. The reversal of 2020002112181 is 1812112000202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1143100967281 + 876901144900 = 1069159^2 + 936430^2 .

It is a cyclic number.

It is not a de Polignac number, because 2020002112181 - 2¹⁸ = 2020001850037 is a prime.

It is a super-2 number, since 2×2020002112181² (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 (2020002712181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010001056090 + 1010001056091.

It is an arithmetic number, because the mean of its divisors is an integer number (1010001056091).

Almost surely, 2^{2020002112181} is an apocalyptic number.

It is an amenable number.

2020002112181 is a deficient number, since it is larger than the sum of its proper divisors (1).

2020002112181 is an equidigital number, since it uses as much as digits as its factorization.

2020002112181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 2020002112181 its reverse (1812112000202), we get a palindrome (3832114112383).

The spelling of 2020002112181 in words is "two trillion, twenty billion, two million, one hundred twelve thousand, one hundred eighty-one".