4221421230 has 64 divisors (see below), whose sum is σ = 11007420480. Its totient is φ = 1029912576.

The previous prime is 4221421207. The next prime is 4221421271. The reversal of 4221421230 is 321241224.

It is a junction number, because it is equal to n+sod(n) for n = 4221421197 and 4221421206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3825 + ... + 91964.

It is an arithmetic number, because the mean of its divisors is an integer number (171990945).

Almost surely, 2^4221421230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4221421230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5503710240).

4221421230 is an abundant number, since it is smaller than the sum of its proper divisors (6785999250).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4221421230 is a wasteful number, since it uses less digits than its factorization.

4221421230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95925.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 4221421230 is about 64972.4651679463. The cubic root of 4221421230 is about 1616.1669820487.

Adding to 4221421230 its reverse (321241224), we get a palindrome (4542662454).

The spelling of 4221421230 in words is "four billion, two hundred twenty-one million, four hundred twenty-one thousand, two hundred thirty".