111210001221169 has 2 divisors, whose sum is σ = 111210001221170. Its totient is φ = 111210001221168.

The previous prime is 111210001221139. The next prime is 111210001221229. The reversal of 111210001221169 is 961122100012111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110149537896225 + 1060463324944 = 10495215^2 + 1029788^2 .

It is an emirp because it is prime and its reverse (961122100012111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111210001221169 - 2¹⁹ = 111210000696881 is a prime.

It is a super-2 number, since 2×111210001221169² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (111210001221119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55605000610584 + 55605000610585.

It is an arithmetic number, because the mean of its divisors is an integer number (55605000610585).

Almost surely, 2^{111210001221169} is an apocalyptic number.

It is an amenable number.

111210001221169 is a deficient number, since it is larger than the sum of its proper divisors (1).

111210001221169 is an equidigital number, since it uses as much as digits as its factorization.

111210001221169 is an evil number, because the sum of its binary digits is even.

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

The spelling of 111210001221169 in words is "one hundred eleven trillion, two hundred ten billion, one million, two hundred twenty-one thousand, one hundred sixty-nine".