111220012099 has 12 divisors (see below), whose sum is σ = 131642786704. Its totient is φ = 92044143072.

The previous prime is 111220012091. The next prime is 111220012103. The reversal of 111220012099 is 990210022111.

It is not a de Polignac number, because 111220012099 - 2³ = 111220012091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111220012091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9440352 + ... + 9452125.

Almost surely, 2^111220012099 is an apocalyptic number.

111220012099 is a deficient number, since it is larger than the sum of its proper divisors (20422774605).

111220012099 is an equidigital number, since it uses as much as digits as its factorization.

111220012099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18892542 (or 18892513 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 28.

The spelling of 111220012099 in words is "one hundred eleven billion, two hundred twenty million, twelve thousand, ninety-nine".