4041125221 has 4 divisors (see below), whose sum is σ = 4618428832. Its totient is φ = 3463821612.

The previous prime is 4041125203. The next prime is 4041125227. The reversal of 4041125221 is 1225211404.

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 4041125221 - 2⁹ = 4041124709 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4041125192 and 4041125201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4041125227) 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 3 ways as a sum of consecutive naturals, for example, 288651795 + ... + 288651808.

It is an arithmetic number, because the mean of its divisors is an integer number (1154607208).

Almost surely, 2^4041125221 is an apocalyptic number.

It is an amenable number.

4041125221 is a deficient number, since it is larger than the sum of its proper divisors (577303611).

4041125221 is an equidigital number, since it uses as much as digits as its factorization.

4041125221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577303610.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 4041125221 is about 63569.8452176816. The cubic root of 4041125221 is about 1592.8226985915.

Adding to 4041125221 its reverse (1225211404), we get a palindrome (5266336625).

The spelling of 4041125221 in words is "four billion, forty-one million, one hundred twenty-five thousand, two hundred twenty-one".