111226213560 has 512 divisors, whose sum is σ = 449772134400. Its totient is φ = 21302507520.

The previous prime is 111226213537. The next prime is 111226213573. The reversal of 111226213560 is 65312622111.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 6487159 + ... + 6504281.

It is an arithmetic number, because the mean of its divisors is an integer number (878461200).

Almost surely, 2^111226213560 is an apocalyptic number.

111226213560 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 111226213560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224886067200).

111226213560 is an abundant number, since it is smaller than the sum of its proper divisors (338545920840).

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

111226213560 is a wasteful number, since it uses less digits than its factorization.

111226213560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17211 (or 17207 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

Adding to 111226213560 its reverse (65312622111), we get a palindrome (176538835671).

The spelling of 111226213560 in words is "one hundred eleven billion, two hundred twenty-six million, two hundred thirteen thousand, five hundred sixty".