211220674351289 has 2 divisors, whose sum is σ = 211220674351290. Its totient is φ = 211220674351288.

The previous prime is 211220674351273. The next prime is 211220674351301. The reversal of 211220674351289 is 982153476022112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 160837182265600 + 50383492085689 = 12682160^2 + 7098133^2 .

It is a cyclic number.

It is not a de Polignac number, because 211220674351289 - 2⁴ = 211220674351273 is a prime.

It is a super-2 number, since 2×211220674351289² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 211220674351289.

It is not a weakly prime, because it can be changed into another prime (211220674351889) 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, 105610337175644 + 105610337175645.

It is an arithmetic number, because the mean of its divisors is an integer number (105610337175645).

It is a 1-persistent number, because it is pandigital, but 2⋅211220674351289 = 422441348702578 is not.

Almost surely, 2^{211220674351289} is an apocalyptic number.

It is an amenable number.

211220674351289 is a deficient number, since it is larger than the sum of its proper divisors (1).

211220674351289 is an equidigital number, since it uses as much as digits as its factorization.

211220674351289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2903040, while the sum is 53.

The spelling of 211220674351289 in words is "two hundred eleven trillion, two hundred twenty billion, six hundred seventy-four million, three hundred fifty-one thousand, two hundred eighty-nine".