211010102011081 has 2 divisors, whose sum is σ = 211010102011082. Its totient is φ = 211010102011080.

The previous prime is 211010102011061. The next prime is 211010102011151. The reversal of 211010102011081 is 180110201010112.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110887744605625 + 100122357405456 = 10530325^2 + 10006116^2 .

It is a cyclic number.

It is not a de Polignac number, because 211010102011081 - 2¹⁷ = 211010101880009 is a prime.

It is a super-3 number, since 3×211010102011081³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (211010102011061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105505051005540 + 105505051005541.

It is an arithmetic number, because the mean of its divisors is an integer number (105505051005541).

Almost surely, 2^{211010102011081} is an apocalyptic number.

It is an amenable number.

211010102011081 is a deficient number, since it is larger than the sum of its proper divisors (1).

211010102011081 is an equidigital number, since it uses as much as digits as its factorization.

211010102011081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 19.

Adding to 211010102011081 its reverse (180110201010112), we get a palindrome (391120303021193).

The spelling of 211010102011081 in words is "two hundred eleven trillion, ten billion, one hundred two million, eleven thousand, eighty-one".