111222308543280 has 640 divisors, whose sum is σ = 425239445790720. Its totient is φ = 23709070049280.

The previous prime is 111222308543279. The next prime is 111222308543287. The reversal of 111222308543280 is 82345803222111.

It is not an unprimeable number, because it can be changed into a prime (111222308543287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 43133431 + ... + 45639209.

It is an arithmetic number, because the mean of its divisors is an integer number (664436634048).

Almost surely, 2^{111222308543280} is an apocalyptic number.

111222308543280 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 111222308543280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212619722895360).

111222308543280 is an abundant number, since it is smaller than the sum of its proper divisors (314017137247440).

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

111222308543280 is a wasteful number, since it uses less digits than its factorization.

111222308543280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2505889 (or 2505883 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 42.

The spelling of 111222308543280 in words is "one hundred eleven trillion, two hundred twenty-two billion, three hundred eight million, five hundred forty-three thousand, two hundred eighty".