2144224120540 has 24 divisors (see below), whose sum is σ = 4767745398192. Its totient is φ = 807237315840.

The previous prime is 2144224120529. The next prime is 2144224120541. The reversal of 2144224120540 is 450214224412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144224120541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3153270426 + ... + 3153271105.

It is an arithmetic number, because the mean of its divisors is an integer number (198656058258).

Almost surely, 2^{2144224120540} is an apocalyptic number.

2144224120540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2144224120540 is an abundant number, since it is smaller than the sum of its proper divisors (2623521277652).

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

2144224120540 is a wasteful number, since it uses less digits than its factorization.

2144224120540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6306541557 (or 6306541555 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 31.

Adding to 2144224120540 its reverse (450214224412), we get a palindrome (2594438344952).

The spelling of 2144224120540 in words is "two trillion, one hundred forty-four billion, two hundred twenty-four million, one hundred twenty thousand, five hundred forty".