11112021200 has 120 divisors (see below), whose sum is σ = 30622718592. Its totient is φ = 3795816960.

The previous prime is 11112021197. The next prime is 11112021209. The reversal of 11112021200 is 212021111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11112021209) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 768437 + ... + 782763.

Almost surely, 2^11112021200 is an apocalyptic number.

11112021200 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 11112021200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15311359296).

11112021200 is an abundant number, since it is smaller than the sum of its proper divisors (19510697392).

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

11112021200 is a wasteful number, since it uses less digits than its factorization.

11112021200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14629 (or 14618 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 11112021200 its reverse (212021111), we get a palindrome (11324042311).

The spelling of 11112021200 in words is "eleven billion, one hundred twelve million, twenty-one thousand, two hundred".