4041220021 has 8 divisors (see below), whose sum is σ = 4073907200. Its totient is φ = 4008664080.

The previous prime is 4041220019. The next prime is 4041220061. The reversal of 4041220021 is 1200221404.

4041220021 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4041220021 - 2¹ = 4041220019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4041219977 and 4041220004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4041220061) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 29500 + ... + 94618.

It is an arithmetic number, because the mean of its divisors is an integer number (509238400).

Almost surely, 2^4041220021 is an apocalyptic number.

It is an amenable number.

4041220021 is a deficient number, since it is larger than the sum of its proper divisors (32687179).

4041220021 is a wasteful number, since it uses less digits than its factorization.

4041220021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65619.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 4041220021 is about 63570.5908498576. The cubic root of 4041220021 is about 1592.8351537373.

Adding to 4041220021 its reverse (1200221404), we get a palindrome (5241441425).

The spelling of 4041220021 in words is "four billion, forty-one million, two hundred twenty thousand, twenty-one".