2144121200 has 240 divisors, whose sum is σ = 5868957696. Its totient is φ = 747187200.

The previous prime is 2144121197. The next prime is 2144121227. The reversal of 2144121200 is 21214412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7576259 + ... + 7576541.

Almost surely, 2^2144121200 is an apocalyptic number.

2144121200 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 2144121200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2934478848).

2144121200 is an abundant number, since it is smaller than the sum of its proper divisors (3724836496).

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

2144121200 is a wasteful number, since it uses less digits than its factorization.

2144121200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392 (or 381 counting only the distinct ones).

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

The square root of 2144121200 is about 46304.6563533302. The cubic root of 2144121200 is about 1289.4854426776.

Adding to 2144121200 its reverse (21214412), we get a palindrome (2165335612).

The spelling of 2144121200 in words is "two billion, one hundred forty-four million, one hundred twenty-one thousand, two hundred".