2012202101281 has 2 divisors, whose sum is σ = 2012202101282. Its totient is φ = 2012202101280.

The previous prime is 2012202101243. The next prime is 2012202101317. The reversal of 2012202101281 is 1821012022102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1836675457600 + 175526643681 = 1355240^2 + 418959^2 .

It is a cyclic number.

It is not a de Polignac number, because 2012202101281 - 2³¹ = 2010054617633 is a prime.

It is a super-2 number, since 2×2012202101281² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2012202101081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006101050640 + 1006101050641.

It is an arithmetic number, because the mean of its divisors is an integer number (1006101050641).

Almost surely, 2^{2012202101281} is an apocalyptic number.

It is an amenable number.

2012202101281 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012202101281 is an equidigital number, since it uses as much as digits as its factorization.

2012202101281 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 2012202101281 its reverse (1821012022102), we get a palindrome (3833214123383).

The spelling of 2012202101281 in words is "two trillion, twelve billion, two hundred two million, one hundred one thousand, two hundred eighty-one".