111226717440 has 432 divisors, whose sum is σ = 406264622400. Its totient is φ = 28017819648.

The previous prime is 111226717417. The next prime is 111226717453. The reversal of 111226717440 is 44717622111.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 111226717395 and 111226717404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 119726896 + ... + 119727824.

Almost surely, 2^111226717440 is an apocalyptic number.

111226717440 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 111226717440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203132311200).

111226717440 is an abundant number, since it is smaller than the sum of its proper divisors (295037904960).

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

111226717440 is a wasteful number, since it uses less digits than its factorization.

111226717440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1522 (or 1505 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The spelling of 111226717440 in words is "one hundred eleven billion, two hundred twenty-six million, seven hundred seventeen thousand, four hundred forty".