4135420221 has 16 divisors (see below), whose sum is σ = 5853672000. Its totient is φ = 2587915008.

The previous prime is 4135420193. The next prime is 4135420229. The reversal of 4135420221 is 1220245314.

It is not a de Polignac number, because 4135420221 - 2¹⁴ = 4135403837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4135420191 and 4135420200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4135420229) 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 15 ways as a sum of consecutive naturals, for example, 87646 + ... + 126303.

It is an arithmetic number, because the mean of its divisors is an integer number (365854500).

Almost surely, 2^4135420221 is an apocalyptic number.

It is an amenable number.

4135420221 is a deficient number, since it is larger than the sum of its proper divisors (1718251779).

4135420221 is a wasteful number, since it uses less digits than its factorization.

4135420221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214348.

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

The square root of 4135420221 is about 64307.2330379717. The cubic root of 4135420221 is about 1605.1164624684.

Adding to 4135420221 its reverse (1220245314), we get a palindrome (5355665535).

The spelling of 4135420221 in words is "four billion, one hundred thirty-five million, four hundred twenty thousand, two hundred twenty-one".