2121322030 has 32 divisors (see below), whose sum is σ = 3864088800. Its totient is φ = 838415232.

The previous prime is 2121321989. The next prime is 2121322043. The reversal of 2121322030 is 302231212.

It is a junction number, because it is equal to n+sod(n) for n = 2121321995 and 2121322013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 421509 + ... + 426511.

It is an arithmetic number, because the mean of its divisors is an integer number (120752775).

Almost surely, 2^2121322030 is an apocalyptic number.

2121322030 is a deficient number, since it is larger than the sum of its proper divisors (1742766770).

2121322030 is a wasteful number, since it uses less digits than its factorization.

2121322030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5508.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2121322030 is about 46057.8118238372. The cubic root of 2121322030 is about 1284.8986339214.

Adding to 2121322030 its reverse (302231212), we get a palindrome (2423553242).

The spelling of 2121322030 in words is "two billion, one hundred twenty-one million, three hundred twenty-two thousand, thirty".