2121112330 has 16 divisors (see below), whose sum is σ = 3818667240. Its totient is φ = 848297152.

The previous prime is 2121112319. The next prime is 2121112337. The reversal of 2121112330 is 332111212.

It can be written as a sum of positive squares in 4 ways, for example, as 712836601 + 1408275729 = 26699^2 + 37527^2 .

It is not an unprimeable number, because it can be changed into a prime (2121112337) 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, 56172 + ... + 86008.

Almost surely, 2^2121112330 is an apocalyptic number.

2121112330 is a deficient number, since it is larger than the sum of its proper divisors (1697554910).

2121112330 is a wasteful number, since it uses less digits than its factorization.

2121112330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36953.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2121112330 is about 46055.5352807890. The cubic root of 2121112330 is about 1284.8562936388.

Adding to 2121112330 its reverse (332111212), we get a palindrome (2453223542).

The spelling of 2121112330 in words is "two billion, one hundred twenty-one million, one hundred twelve thousand, three hundred thirty".