4224120010421 has 8 divisors (see below), whose sum is σ = 4330096862040. Its totient is φ = 4119443488512.

The previous prime is 4224120010399. The next prime is 4224120010463. The reversal of 4224120010421 is 1240100214224.

It can be written as a sum of positive squares in 4 ways, for example, as 549177334225 + 3674942676196 = 741065^2 + 1917014^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 4224120010421 - 2³⁴ = 4206940141237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4224120010321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 325075850 + ... + 325088843.

It is an arithmetic number, because the mean of its divisors is an integer number (541262107755).

Almost surely, 2^{4224120010421} is an apocalyptic number.

It is an amenable number.

4224120010421 is a deficient number, since it is larger than the sum of its proper divisors (105976851619).

4224120010421 is an equidigital number, since it uses as much as digits as its factorization.

4224120010421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650164855.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 4224120010421 its reverse (1240100214224), we get a palindrome (5464220224645).

The spelling of 4224120010421 in words is "four trillion, two hundred twenty-four billion, one hundred twenty million, ten thousand, four hundred twenty-one".