3125221133 has 4 divisors (see below), whose sum is σ = 3143935200. Its totient is φ = 3106507068.

The previous prime is 3125221111. The next prime is 3125221153. The reversal of 3125221133 is 3311225213.

3125221133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3125221133 - 2⁶ = 3125221069 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3125221099 and 3125221108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3125221103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9356783 + ... + 9357116.

It is an arithmetic number, because the mean of its divisors is an integer number (785983800).

Almost surely, 2^3125221133 is an apocalyptic number.

It is an amenable number.

3125221133 is a deficient number, since it is larger than the sum of its proper divisors (18714067).

3125221133 is a wasteful number, since it uses less digits than its factorization.

3125221133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18714066.

The product of its digits is 1080, while the sum is 23.

The square root of 3125221133 is about 55903.6772761864. The cubic root of 3125221133 is about 1462.0433534565.

Adding to 3125221133 its reverse (3311225213), we get a palindrome (6436446346).

The spelling of 3125221133 in words is "three billion, one hundred twenty-five million, two hundred twenty-one thousand, one hundred thirty-three".