212021114917 has 2 divisors, whose sum is σ = 212021114918. Its totient is φ = 212021114916.

The previous prime is 212021114891. The next prime is 212021114927. The reversal of 212021114917 is 719411120212.

212021114917 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 210542404801 + 1478710116 = 458849^2 + 38454^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212021114917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212021114927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106010557458 + 106010557459.

It is an arithmetic number, because the mean of its divisors is an integer number (106010557459).

Almost surely, 2^212021114917 is an apocalyptic number.

It is an amenable number.

212021114917 is a deficient number, since it is larger than the sum of its proper divisors (1).

212021114917 is an equidigital number, since it uses as much as digits as its factorization.

212021114917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 31.

The spelling of 212021114917 in words is "two hundred twelve billion, twenty-one million, one hundred fourteen thousand, nine hundred seventeen".