2121311044 has 12 divisors (see below), whose sum is σ = 3712642668. Its totient is φ = 1060556000.

The previous prime is 2121311041. The next prime is 2121311089. The reversal of 2121311044 is 4401131212.

It can be written as a sum of positive squares in 2 ways, for example, as 298874944 + 1822436100 = 17288^2 + 42690^2 .

It is not an unprimeable number, because it can be changed into a prime (2121311041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44694 + ... + 78994.

It is an arithmetic number, because the mean of its divisors is an integer number (309386889).

Almost surely, 2^2121311044 is an apocalyptic number.

It is an amenable number.

2121311044 is a deficient number, since it is larger than the sum of its proper divisors (1591331624).

2121311044 is a wasteful number, since it uses less digits than its factorization.

2121311044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49766 (or 49764 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 2121311044 is about 46057.6925605267. The cubic root of 2121311044 is about 1284.8964158202.

Adding to 2121311044 its reverse (4401131212), we get a palindrome (6522442256).

The spelling of 2121311044 in words is "two billion, one hundred twenty-one million, three hundred eleven thousand, forty-four".