111222113211300 has 288 divisors, whose sum is σ = 396138251751424. Its totient is φ = 23462291520000.

The previous prime is 111222113211241. The next prime is 111222113211317. The reversal of 111222113211300 is 3112311222111.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 147891225 + ... + 148641375.

Almost surely, 2^{111222113211300} is an apocalyptic number.

111222113211300 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 111222113211300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198069125875712).

111222113211300 is an abundant number, since it is smaller than the sum of its proper divisors (284916138540124).

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

111222113211300 is a wasteful number, since it uses less digits than its factorization.

111222113211300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755619 (or 755612 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 111222113211300 its reverse (3112311222111), we get a palindrome (114334424433411).

The spelling of 111222113211300 in words is "one hundred eleven trillion, two hundred twenty-two billion, one hundred thirteen million, two hundred eleven thousand, three hundred".