2120210424 has 32 divisors (see below), whose sum is σ = 5889474000. Its totient is φ = 706736736.

The previous prime is 2120210423. The next prime is 2120210447. The reversal of 2120210424 is 4240120212.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2120210397 and 2120210406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120210423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4907679 + ... + 4908110.

Almost surely, 2^2120210424 is an apocalyptic number.

2120210424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2120210424 is an abundant number, since it is smaller than the sum of its proper divisors (3769263576).

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

2120210424 is a wasteful number, since it uses less digits than its factorization.

2120210424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9815804 (or 9815794 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 2120210424 is about 46045.7427348067. The cubic root of 2120210424 is about 1284.6741590315.

Adding to 2120210424 its reverse (4240120212), we get a palindrome (6360330636).

It can be divided in two parts, 21202 and 10424, that added together give a triangular number (31626 = T₂₅₁).

The spelling of 2120210424 in words is "two billion, one hundred twenty million, two hundred ten thousand, four hundred twenty-four".