111011220120000 has 280 divisors, whose sum is σ = 371152953349200. Its totient is φ = 29270371328000.

The previous prime is 111011220119957. The next prime is 111011220120061. The reversal of 111011220120000 is 21022110111.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 5482846 + ... + 15877154.

Almost surely, 2^{111011220120000} is an apocalyptic number.

111011220120000 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 111011220120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185576476674600).

111011220120000 is an abundant number, since it is smaller than the sum of its proper divisors (260141733229200).

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

111011220120000 is an equidigital number, since it uses as much as digits as its factorization.

111011220120000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10394433 (or 10394408 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 111011220120000 its reverse (21022110111), we get a palindrome (111032242230111).

The spelling of 111011220120000 in words is "one hundred eleven trillion, eleven billion, two hundred twenty million, one hundred twenty thousand".