111222110321969 has 2 divisors, whose sum is σ = 111222110321970. Its totient is φ = 111222110321968.

The previous prime is 111222110321951. The next prime is 111222110322013. The reversal of 111222110321969 is 969123011222111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90911648257600 + 20310462064369 = 9534760^2 + 4506713^2 .

It is a cyclic number.

It is not a de Polignac number, because 111222110321969 - 2⁴⁰ = 110122598694193 is a prime.

It is a super-2 number, since 2×111222110321969² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (111222110323969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55611055160984 + 55611055160985.

It is an arithmetic number, because the mean of its divisors is an integer number (55611055160985).

Almost surely, 2^{111222110321969} is an apocalyptic number.

It is an amenable number.

111222110321969 is a deficient number, since it is larger than the sum of its proper divisors (1).

111222110321969 is an equidigital number, since it uses as much as digits as its factorization.

111222110321969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 41.

The spelling of 111222110321969 in words is "one hundred eleven trillion, two hundred twenty-two billion, one hundred ten million, three hundred twenty-one thousand, nine hundred sixty-nine".