111200210000 has 300 divisors, whose sum is σ = 306227991300. Its totient is φ = 39029760000.

The previous prime is 111200209999. The next prime is 111200210003. The reversal of 111200210000 is 12002111.

It can be written as a sum of positive squares in 10 ways, for example, as 65960621584 + 45239588416 = 256828^2 + 212696^2 .

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a self number, because there is not a number n which added to its sum of digits gives 111200210000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111200210003) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 35088416 + ... + 35091584.

It is an arithmetic number, because the mean of its divisors is an integer number (1020759971).

Almost surely, 2^111200210000 is an apocalyptic number.

111200210000 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 111200210000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153113995650).

111200210000 is an abundant number, since it is smaller than the sum of its proper divisors (195027781300).

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

111200210000 is a wasteful number, since it uses less digits than its factorization.

111200210000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3248 (or 3216 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 111200210000 its reverse (12002111), we get a palindrome (111212212111).

The spelling of 111200210000 in words is "one hundred eleven billion, two hundred million, two hundred ten thousand".