212010112081 has 2 divisors, whose sum is σ = 212010112082. Its totient is φ = 212010112080.

The previous prime is 212010112007. The next prime is 212010112133. The reversal of 212010112081 is 180211010212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 183968935056 + 28041177025 = 428916^2 + 167455^2 .

It is a cyclic number.

It is not a de Polignac number, because 212010112081 - 2¹³ = 212010103889 is a prime.

It is a super-2 number, since 2×212010112081² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (212010112381) 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, 106005056040 + 106005056041.

It is an arithmetic number, because the mean of its divisors is an integer number (106005056041).

Almost surely, 2^212010112081 is an apocalyptic number.

It is an amenable number.

212010112081 is a deficient number, since it is larger than the sum of its proper divisors (1).

212010112081 is an equidigital number, since it uses as much as digits as its factorization.

212010112081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 212010112081 its reverse (180211010212), we get a palindrome (392221122293).

The spelling of 212010112081 in words is "two hundred twelve billion, ten million, one hundred twelve thousand, eighty-one".