2120212424 has 64 divisors (see below), whose sum is σ = 4472677440. Its totient is φ = 933986560.

The previous prime is 2120212421. The next prime is 2120212429. The reversal of 2120212424 is 4242120212.

It is a junction number, because it is equal to n+sod(n) for n = 2120212396 and 2120212405.

It is not an unprimeable number, because it can be changed into a prime (2120212421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 384374 + ... + 389850.

It is an arithmetic number, because the mean of its divisors is an integer number (69885585).

Almost surely, 2^2120212424 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 2120212424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2236338720).

2120212424 is an abundant number, since it is smaller than the sum of its proper divisors (2352465016).

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

2120212424 is a wasteful number, since it uses less digits than its factorization.

2120212424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5630 (or 5626 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 2120212424 is about 46045.7644523359. The cubic root of 2120212424 is about 1284.6745629768.

Adding to 2120212424 its reverse (4242120212), we get a palindrome (6362332636).

The spelling of 2120212424 in words is "two billion, one hundred twenty million, two hundred twelve thousand, four hundred twenty-four".