2120131224 has 48 divisors (see below), whose sum is σ = 5744492520. Its totient is φ = 706406400.

The previous prime is 2120131157. The next prime is 2120131243. The reversal of 2120131224 is 4221310212.

It is a happy number.

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 = 2120131197 and 2120131206.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 216024 + ... + 225624.

Almost surely, 2^2120131224 is an apocalyptic number.

2120131224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2120131224 is an abundant number, since it is smaller than the sum of its proper divisors (3624361296).

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

2120131224 is a wasteful number, since it uses less digits than its factorization.

2120131224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12680 (or 12673 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2120131224 is about 46044.8827124144. The cubic root of 2120131224 is about 1284.6581625909.

Adding to 2120131224 its reverse (4221310212), we get a palindrome (6341441436).

It can be divided in two parts, 21201 and 31224, that added together give a palindrome (52425).

The spelling of 2120131224 in words is "two billion, one hundred twenty million, one hundred thirty-one thousand, two hundred twenty-four".