4102422021 has 6 divisors (see below), whose sum is σ = 5925720710. Its totient is φ = 2734948008.

The previous prime is 4102422019. The next prime is 4102422073. The reversal of 4102422021 is 1202242014.

It can be written as a sum of positive squares in only one way, i.e., 2590301025 + 1512120996 = 50895^2 + 38886^2 .

It is not a de Polignac number, because 4102422021 - 2¹ = 4102422019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4102421985 and 4102422003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4102422001) 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 5 ways as a sum of consecutive naturals, for example, 227912326 + ... + 227912343.

Almost surely, 2^4102422021 is an apocalyptic number.

It is an amenable number.

4102422021 is a deficient number, since it is larger than the sum of its proper divisors (1823298689).

4102422021 is a wasteful number, since it uses less digits than its factorization.

4102422021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455824675 (or 455824672 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 4102422021 is about 64050.1523885775. The cubic root of 4102422021 is about 1600.8357640116.

Adding to 4102422021 its reverse (1202242014), we get a palindrome (5304664035).

The spelling of 4102422021 in words is "four billion, one hundred two million, four hundred twenty-two thousand, twenty-one".