3124045221 has 16 divisors (see below), whose sum is σ = 4621086720. Its totient is φ = 1861268720.

The previous prime is 3124045157. The next prime is 3124045229. The reversal of 3124045221 is 1225404213.

3124045221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 3124045221 - 2⁶ = 3124045157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3124045191 and 3124045200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3124045229) 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, 800325 + ... + 804218.

It is an arithmetic number, because the mean of its divisors is an integer number (288817920).

Almost surely, 2^3124045221 is an apocalyptic number.

It is an amenable number.

3124045221 is a deficient number, since it is larger than the sum of its proper divisors (1497041499).

3124045221 is a wasteful number, since it uses less digits than its factorization.

3124045221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1604616.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 3124045221 is about 55893.1589821152. The cubic root of 3124045221 is about 1461.8599584342.

Adding to 3124045221 its reverse (1225404213), we get a palindrome (4349449434).

The spelling of 3124045221 in words is "three billion, one hundred twenty-four million, forty-five thousand, two hundred twenty-one".