111120199999969 has 2 divisors, whose sum is σ = 111120199999970. Its totient is φ = 111120199999968.

The previous prime is 111120199999961. The next prime is 111120200000021. The reversal of 111120199999969 is 969999991021111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64049417535744 + 47070782464225 = 8003088^2 + 6860815^2 .

It is a cyclic number.

It is not a de Polignac number, because 111120199999969 - 2³ = 111120199999961 is a prime.

It is a super-2 number, since 2×111120199999969² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111120199999895 and 111120199999904.

It is not a weakly prime, because it can be changed into another prime (111120199999961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55560099999984 + 55560099999985.

It is an arithmetic number, because the mean of its divisors is an integer number (55560099999985).

Almost surely, 2^{111120199999969} is an apocalyptic number.

It is an amenable number.

111120199999969 is a deficient number, since it is larger than the sum of its proper divisors (1).

111120199999969 is an equidigital number, since it uses as much as digits as its factorization.

111120199999969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 57395628, while the sum is 76.

The spelling of 111120199999969 in words is "one hundred eleven trillion, one hundred twenty billion, one hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred sixty-nine".