2311220011200 has 84 divisors (see below), whose sum is σ = 7582727669160. Its totient is φ = 616325335040.

The previous prime is 2311220011187. The next prime is 2311220011229. The reversal of 2311220011200 is 21100221132.

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 2311220011200.

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 11 ways as a sum of consecutive naturals, for example, 240747285 + ... + 240756884.

It is an arithmetic number, because the mean of its divisors is an integer number (90270567490).

Almost surely, 2^{2311220011200} is an apocalyptic number.

2311220011200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2311220011200 is an abundant number, since it is smaller than the sum of its proper divisors (5271507657960).

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

2311220011200 is a wasteful number, since it uses less digits than its factorization.

2311220011200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481504194 (or 481504179 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 2311220011200 its reverse (21100221132), we get a palindrome (2332320232332).

It can be divided in two parts, 23112200 and 11200, that added together give a triangular number (23123400 = T₆₈₀₀).

The spelling of 2311220011200 in words is "two trillion, three hundred eleven billion, two hundred twenty million, eleven thousand, two hundred".