2144234331220 has 24 divisors (see below), whose sum is σ = 4515434985600. Its totient is φ = 855304610592.

The previous prime is 2144234331181. The next prime is 2144234331229. The reversal of 2144234331220 is 221334324412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144234331229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149312760 + ... + 149327119.

It is an arithmetic number, because the mean of its divisors is an integer number (188143124400).

Almost surely, 2^{2144234331220} is an apocalyptic number.

2144234331220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2144234331220 is an abundant number, since it is smaller than the sum of its proper divisors (2371200654380).

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

2144234331220 is a wasteful number, since it uses less digits than its factorization.

2144234331220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298640247 (or 298640245 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 2144234331220 its reverse (221334324412), we get a palindrome (2365568655632).

The spelling of 2144234331220 in words is "two trillion, one hundred forty-four billion, two hundred thirty-four million, three hundred thirty-one thousand, two hundred twenty".