111111102099969 has 24 divisors (see below), whose sum is σ = 156250105928448. Its totient is φ = 70159377997920.

The previous prime is 111111102099953. The next prime is 111111102099979. The reversal of 111111102099969 is 969990201111111.

It is not a de Polignac number, because 111111102099969 - 2⁴ = 111111102099953 is a prime.

It is a super-2 number, since 2×111111102099969² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111111102099979) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 270220782 + ... + 270631655.

It is an arithmetic number, because the mean of its divisors is an integer number (6510421080352).

Almost surely, 2^{111111102099969} is an apocalyptic number.

It is an amenable number.

111111102099969 is a deficient number, since it is larger than the sum of its proper divisors (45139003828479).

111111102099969 is an equidigital number, since it uses as much as digits as its factorization.

111111102099969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540852565 (or 540852518 counting only the distinct ones).

The product of its (nonzero) digits is 78732, while the sum is 51.

The spelling of 111111102099969 in words is "one hundred eleven trillion, one hundred eleven billion, one hundred two million, ninety-nine thousand, nine hundred sixty-nine".