1111030021200 has 480 divisors, whose sum is σ = 4007857480704. Its totient is φ = 260748800000.

The previous prime is 1111030021183. The next prime is 1111030021201. The reversal of 1111030021200 is 21200301111.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111030021201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 70889365 + ... + 70905035.

Almost surely, 2^{1111030021200} is an apocalyptic number.

1111030021200 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 1111030021200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2003928740352).

1111030021200 is an abundant number, since it is smaller than the sum of its proper divisors (2896827459504).

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

1111030021200 is a wasteful number, since it uses less digits than its factorization.

1111030021200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15875 (or 15864 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 1111030021200 its reverse (21200301111), we get a palindrome (1132230322311).

The spelling of 1111030021200 in words is "one trillion, one hundred eleven billion, thirty million, twenty-one thousand, two hundred".