211220101011169 has 2 divisors, whose sum is σ = 211220101011170. Its totient is φ = 211220101011168.

The previous prime is 211220101011083. The next prime is 211220101011209. The reversal of 211220101011169 is 961110101022112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 130073568800400 + 81146532210769 = 11404980^2 + 9008137^2 .

It is a cyclic number.

It is not a de Polignac number, because 211220101011169 - 2¹⁷ = 211220100880097 is a prime.

It is a super-2 number, since 2×211220101011169² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (211220101018169) 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, 105610050505584 + 105610050505585.

It is an arithmetic number, because the mean of its divisors is an integer number (105610050505585).

Almost surely, 2^{211220101011169} is an apocalyptic number.

It is an amenable number.

211220101011169 is a deficient number, since it is larger than the sum of its proper divisors (1).

211220101011169 is an equidigital number, since it uses as much as digits as its factorization.

211220101011169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 28.

The spelling of 211220101011169 in words is "two hundred eleven trillion, two hundred twenty billion, one hundred one million, eleven thousand, one hundred sixty-nine".