4221421510 has 8 divisors (see below), whose sum is σ = 7598558736. Its totient is φ = 1688568600.

The previous prime is 4221421489. The next prime is 4221421517. The reversal of 4221421510 is 151241224.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4221421517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211071066 + ... + 211071085.

It is an arithmetic number, because the mean of its divisors is an integer number (949819842).

Almost surely, 2^4221421510 is an apocalyptic number.

4221421510 is a deficient number, since it is larger than the sum of its proper divisors (3377137226).

4221421510 is a wasteful number, since it uses less digits than its factorization.

4221421510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422142158.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 4221421510 is about 64972.4673227052. The cubic root of 4221421510 is about 1616.1670177812.

Adding to 4221421510 its reverse (151241224), we get a palindrome (4372662734).

The spelling of 4221421510 in words is "four billion, two hundred twenty-one million, four hundred twenty-one thousand, five hundred ten".