211121210101069 has 2 divisors, whose sum is σ = 211121210101070. Its totient is φ = 211121210101068.

The previous prime is 211121210100971. The next prime is 211121210101099. The reversal of 211121210101069 is 960101012121112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 196668705395044 + 14452504706025 = 14023862^2 + 3801645^2 .

It is a cyclic number.

It is not a de Polignac number, because 211121210101069 - 2²¹ = 211121208003917 is a prime.

It is a super-2 number, since 2×211121210101069² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211121210101099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105560605050534 + 105560605050535.

It is an arithmetic number, because the mean of its divisors is an integer number (105560605050535).

Almost surely, 2^{211121210101069} is an apocalyptic number.

It is an amenable number.

211121210101069 is a deficient number, since it is larger than the sum of its proper divisors (1).

211121210101069 is an equidigital number, since it uses as much as digits as its factorization.

211121210101069 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 211121210101069 in words is "two hundred eleven trillion, one hundred twenty-one billion, two hundred ten million, one hundred one thousand, sixty-nine".