201111200400 has 240 divisors, whose sum is σ = 707515876800. Its totient is φ = 48426547200.

The previous prime is 201111200377. The next prime is 201111200441. The reversal of 201111200400 is 4002111102.

It is a happy number.

201111200400 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (240).

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

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 1915674 + ... + 2017926.

It is an arithmetic number, because the mean of its divisors is an integer number (2947982820).

Almost surely, 2^201111200400 is an apocalyptic number.

201111200400 is a gapful number since it is divisible by the number (20) 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 201111200400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (353757938400).

201111200400 is an abundant number, since it is smaller than the sum of its proper divisors (506404676400).

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

201111200400 is a wasteful number, since it uses less digits than its factorization.

201111200400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102434 (or 102423 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 201111200400 its reverse (4002111102), we get a palindrome (205113311502).

The spelling of 201111200400 in words is "two hundred one billion, one hundred eleven million, two hundred thousand, four hundred".