1111211220300 has 144 divisors (see below), whose sum is σ = 3412723884192. Its totient is φ = 278196224000.

The previous prime is 1111211220293. The next prime is 1111211220313. The reversal of 1111211220300 is 30221121111.

It is a super-2 number, since 2×1111211220300² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1111211220300.

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 47 ways as a sum of consecutive naturals, for example, 1773424 + ... + 2316776.

It is an arithmetic number, because the mean of its divisors is an integer number (23699471418).

Almost surely, 2^{1111211220300} is an apocalyptic number.

1111211220300 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 1111211220300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1706361942096).

1111211220300 is an abundant number, since it is smaller than the sum of its proper divisors (2301512663892).

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

1111211220300 is a wasteful number, since it uses less digits than its factorization.

1111211220300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543788 (or 543781 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 1111211220300 its reverse (30221121111), we get a palindrome (1141432341411).

The spelling of 1111211220300 in words is "one trillion, one hundred eleven billion, two hundred eleven million, two hundred twenty thousand, three hundred".