3201121224 has 48 divisors (see below), whose sum is σ = 9908233920. Its totient is φ = 914605920.

The previous prime is 3201121223. The next prime is 3201121229. The reversal of 3201121224 is 4221211023.

It is a happy number.

3201121224 is a `hidden beast` number, since 320 + 1 + 121 + 224 = 666.

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 = 3201121197 and 3201121206.

It is not an unprimeable number, because it can be changed into a prime (3201121223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3175212 + ... + 3176219.

It is an arithmetic number, because the mean of its divisors is an integer number (206421540).

Almost surely, 2^3201121224 is an apocalyptic number.

It is an amenable number.

3201121224 is an abundant number, since it is smaller than the sum of its proper divisors (6707112696).

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

3201121224 is a wasteful number, since it uses less digits than its factorization.

3201121224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6351450 (or 6351443 counting only the distinct ones).

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

The square root of 3201121224 is about 56578.4519406461. The cubic root of 3201121224 is about 1473.7846887142.

Adding to 3201121224 its reverse (4221211023), we get a palindrome (7422332247).

It can be divided in two parts, 32011 and 21224, that added together give a palindrome (53235).

The spelling of 3201121224 in words is "three billion, two hundred one million, one hundred twenty-one thousand, two hundred twenty-four".