2011312200 has 48 divisors (see below), whose sum is σ = 6235069680. Its totient is φ = 536349760.

The previous prime is 2011312189. The next prime is 2011312201. The reversal of 2011312200 is 22131102.

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

It is not an unprimeable number, because it can be changed into a prime (2011312201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1675494 + ... + 1676693.

It is an arithmetic number, because the mean of its divisors is an integer number (129897285).

Almost surely, 2^2011312200 is an apocalyptic number.

2011312200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2011312200 is an abundant number, since it is smaller than the sum of its proper divisors (4223757480).

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

2011312200 is a wasteful number, since it uses less digits than its factorization.

2011312200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3352206 (or 3352197 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 2011312200 is about 44847.6554571139. The cubic root of 2011312200 is about 1262.2919985401.

Adding to 2011312200 its reverse (22131102), we get a palindrome (2033443302).

The spelling of 2011312200 in words is "two billion, eleven million, three hundred twelve thousand, two hundred".