212011111200281 has 2 divisors, whose sum is σ = 212011111200282. Its totient is φ = 212011111200280.

The previous prime is 212011111200263. The next prime is 212011111200311. The reversal of 212011111200281 is 182002111110212.

212011111200281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 210399521574025 + 1611589626256 = 14505155^2 + 1269484^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212011111200281 is a prime.

It is a super-2 number, since 2×212011111200281² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (212011111200481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106005555600140 + 106005555600141.

It is an arithmetic number, because the mean of its divisors is an integer number (106005555600141).

Almost surely, 2^{212011111200281} is an apocalyptic number.

It is an amenable number.

212011111200281 is a deficient number, since it is larger than the sum of its proper divisors (1).

212011111200281 is an equidigital number, since it uses as much as digits as its factorization.

212011111200281 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 23.

Adding to 212011111200281 its reverse (182002111110212), we get a palindrome (394013222310493).

The spelling of 212011111200281 in words is "two hundred twelve trillion, eleven billion, one hundred eleven million, two hundred thousand, two hundred eighty-one".