2141121444 has 144 divisors (see below), whose sum is σ = 6400215360. Its totient is φ = 550851840.

The previous prime is 2141121427. The next prime is 2141121469. The reversal of 2141121444 is 4441211412.

It is a nude number because it is divisible by every one of its digits.

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, 703494 + ... + 706530.

It is an arithmetic number, because the mean of its divisors is an integer number (44445940).

Almost surely, 2^2141121444 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2141121444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3200107680).

2141121444 is an abundant number, since it is smaller than the sum of its proper divisors (4259093916).

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

2141121444 is a wasteful number, since it uses less digits than its factorization.

2141121444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3178 (or 3169 counting only the distinct ones).

The product of its digits is 1024, while the sum is 24.

The square root of 2141121444 is about 46272.2535003429. The cubic root of 2141121444 is about 1288.8838058207.

Adding to 2141121444 its reverse (4441211412), we get a palindrome (6582332856).

The spelling of 2141121444 in words is "two billion, one hundred forty-one million, one hundred twenty-one thousand, four hundred forty-four".