111102101121120 has 384 divisors, whose sum is σ = 368190872179200. Its totient is φ = 28131024125952.

The previous prime is 111102101121107. The next prime is 111102101121127. The reversal of 111102101121120 is 21121101201111.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 111102101121120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111102101121127) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 143167111 + ... + 143941049.

It is an arithmetic number, because the mean of its divisors is an integer number (958830396300).

Almost surely, 2^{111102101121120} is an apocalyptic number.

111102101121120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111102101121120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184095436089600).

111102101121120 is an abundant number, since it is smaller than the sum of its proper divisors (257088771058080).

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

111102101121120 is a wasteful number, since it uses less digits than its factorization.

111102101121120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774190 (or 774182 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 111102101121120 its reverse (21121101201111), we get a palindrome (132223202322231).

The spelling of 111102101121120 in words is "one hundred eleven trillion, one hundred two billion, one hundred one million, one hundred twenty-one thousand, one hundred twenty".