2111213200 has 30 divisors (see below), whose sum is σ = 5072190674. Its totient is φ = 844485120.

The previous prime is 2111213179. The next prime is 2111213207. The reversal of 2111213200 is 23121112.

It can be written as a sum of positive squares in 3 ways, for example, as 155451024 + 1955762176 = 12468^2 + 44224^2 .

It is not an unprimeable number, because it can be changed into a prime (2111213207) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 2638617 + ... + 2639416.

Almost surely, 2^2111213200 is an apocalyptic number.

2111213200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2111213200 is an abundant number, since it is smaller than the sum of its proper divisors (2960977474).

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

2111213200 is a wasteful number, since it uses less digits than its factorization.

2111213200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5278051 (or 5278040 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 2111213200 is about 45947.9401061680. The cubic root of 2111213200 is about 1282.8543884715.

Adding to 2111213200 its reverse (23121112), we get a palindrome (2134334312).

The spelling of 2111213200 in words is "two billion, one hundred eleven million, two hundred thirteen thousand, two hundred".