211211221012793 has 2 divisors, whose sum is σ = 211211221012794. Its totient is φ = 211211221012792.

The previous prime is 211211221012711. The next prime is 211211221012801. The reversal of 211211221012793 is 397210122112112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 186547164783529 + 24664056229264 = 13658227^2 + 4966292^2 .

It is a cyclic number.

It is not a de Polignac number, because 211211221012793 - 2⁴⁴ = 193619034968377 is a prime.

It is a super-2 number, since 2×211211221012793² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (211211221012703) 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, 105605610506396 + 105605610506397.

It is an arithmetic number, because the mean of its divisors is an integer number (105605610506397).

Almost surely, 2^{211211221012793} is an apocalyptic number.

It is an amenable number.

211211221012793 is a deficient number, since it is larger than the sum of its proper divisors (1).

211211221012793 is an equidigital number, since it uses as much as digits as its factorization.

211211221012793 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 35.

The spelling of 211211221012793 in words is "two hundred eleven trillion, two hundred eleven billion, two hundred twenty-one million, twelve thousand, seven hundred ninety-three".