2121103244 has 12 divisors (see below), whose sum is σ = 3997463904. Its totient is φ = 978970704.

The previous prime is 2121103241. The next prime is 2121103249. The reversal of 2121103244 is 4423011212.

It is not an unprimeable number, because it can be changed into a prime (2121103241) 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, 20395172 + ... + 20395275.

It is an arithmetic number, because the mean of its divisors is an integer number (333121992).

Almost surely, 2^2121103244 is an apocalyptic number.

It is an amenable number.

2121103244 is a deficient number, since it is larger than the sum of its proper divisors (1876360660).

2121103244 is a wasteful number, since it uses less digits than its factorization.

2121103244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40790464 (or 40790462 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 2121103244 is about 46055.4366389029. The cubic root of 2121103244 is about 1284.8544590321.

Adding to 2121103244 its reverse (4423011212), we get a palindrome (6544114456).

The spelling of 2121103244 in words is "two billion, one hundred twenty-one million, one hundred three thousand, two hundred forty-four".