2121441200 has 60 divisors (see below), whose sum is σ = 5365032360. Its totient is φ = 803911680.

The previous prime is 2121441199. The next prime is 2121441211. The reversal of 2121441200 is 21441212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 131969 + ... + 147168.

It is an arithmetic number, because the mean of its divisors is an integer number (89417206).

Almost surely, 2^2121441200 is an apocalyptic number.

2121441200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2121441200 is an abundant number, since it is smaller than the sum of its proper divisors (3243591160).

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

2121441200 is a wasteful number, since it uses less digits than its factorization.

2121441200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279174 (or 279163 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 2121441200 is about 46059.1055058606. The cubic root of 2121441200 is about 1284.9226941538.

Adding to 2121441200 its reverse (21441212), we get a palindrome (2142882412).

The spelling of 2121441200 in words is "two billion, one hundred twenty-one million, four hundred forty-one thousand, two hundred".