2144440122 has 64 divisors (see below), whose sum is σ = 4760322048. Its totient is φ = 638568000.

The previous prime is 2144440099. The next prime is 2144440127. The reversal of 2144440122 is 2210444412.

It is a junction number, because it is equal to n+sod(n) for n = 2144440092 and 2144440101.

It is not an unprimeable number, because it can be changed into a prime (2144440127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1972263 + ... + 1973349.

It is an arithmetic number, because the mean of its divisors is an integer number (74380032).

Almost surely, 2^2144440122 is an apocalyptic number.

2144440122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2144440122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2380161024).

2144440122 is an abundant number, since it is smaller than the sum of its proper divisors (2615881926).

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

2144440122 is a wasteful number, since it uses less digits than its factorization.

2144440122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1595.

The product of its (nonzero) digits is 2048, while the sum is 24.

The square root of 2144440122 is about 46308.0999610219. The cubic root of 2144440122 is about 1289.5493732813.

Adding to 2144440122 its reverse (2210444412), we get a palindrome (4354884534).

The spelling of 2144440122 in words is "two billion, one hundred forty-four million, four hundred forty thousand, one hundred twenty-two".