111122122100000 has 144 divisors (see below), whose sum is σ = 298305925448832. Its totient is φ = 40408044000000.

The previous prime is 111122122099981. The next prime is 111122122100021. The reversal of 111122122100000 is 1221221111.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49410056 + ... + 51610055.

It is an arithmetic number, because the mean of its divisors is an integer number (2071568926728).

Almost surely, 2^{111122122100000} is an apocalyptic number.

111122122100000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111122122100000 is an abundant number, since it is smaller than the sum of its proper divisors (187183803348832).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111122122100000 is an equidigital number, since it uses as much as digits as its factorization.

111122122100000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101020157 (or 101020129 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 111122122100000 its reverse (1221221111), we get a palindrome (111123343321111).

The spelling of 111122122100000 in words is "one hundred eleven trillion, one hundred twenty-two billion, one hundred twenty-two million, one hundred thousand".