111102101021969 has 2 divisors, whose sum is σ = 111102101021970. Its totient is φ = 111102101021968.

The previous prime is 111102101021957. The next prime is 111102101022037. The reversal of 111102101021969 is 969120101201111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 102854078890000 + 8248022131969 = 10141700^2 + 2871937^2 .

It is a cyclic number.

It is not a de Polignac number, because 111102101021969 - 2⁴⁰ = 110002589394193 is a prime.

It is a super-2 number, since 2×111102101021969² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (111102101027969) 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, 55551050510984 + 55551050510985.

It is an arithmetic number, because the mean of its divisors is an integer number (55551050510985).

Almost surely, 2^{111102101021969} is an apocalyptic number.

It is an amenable number.

111102101021969 is a deficient number, since it is larger than the sum of its proper divisors (1).

111102101021969 is an equidigital number, since it uses as much as digits as its factorization.

111102101021969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 35.

The spelling of 111102101021969 in words is "one hundred eleven trillion, one hundred two billion, one hundred one million, twenty-one thousand, nine hundred sixty-nine".