4221421140 has 48 divisors (see below), whose sum is σ = 12442086720. Its totient is φ = 1066464000.

The previous prime is 4221421123. The next prime is 4221421177. The reversal of 4221421140 is 411241224.

It is a congruent number.

It is an unprimeable number.

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, 1850361 + ... + 1852640.

It is an arithmetic number, because the mean of its divisors is an integer number (259210140).

Almost surely, 2^4221421140 is an apocalyptic number.

It is an amenable number.

4221421140 is an abundant number, since it is smaller than the sum of its proper divisors (8220665580).

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

4221421140 is a wasteful number, since it uses less digits than its factorization.

4221421140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3703032 (or 3703030 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 4221421140 is about 64972.4644753452. The cubic root of 4221421140 is about 1616.1669705632.

Adding to 4221421140 its reverse (411241224), we get a palindrome (4632662364).

The spelling of 4221421140 in words is "four billion, two hundred twenty-one million, four hundred twenty-one thousand, one hundred forty".