4234224030021 has 12 divisors (see below), whose sum is σ = 6342623650272. Its totient is φ = 2822816019852.

The previous prime is 4234224030019. The next prime is 4234224030037. The reversal of 4234224030021 is 1200304224324.

4234224030021 is a `hidden beast` number, since 4 + 234 + 2 + 2 + 403 + 0 + 0 + 21 = 666.

It is not a de Polignac number, because 4234224030021 - 2¹ = 4234224030019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4234224030121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8712394881 + ... + 8712395366.

It is an arithmetic number, because the mean of its divisors is an integer number (528551970856).

Almost surely, 2^{4234224030021} is an apocalyptic number.

It is an amenable number.

4234224030021 is a deficient number, since it is larger than the sum of its proper divisors (2108399620251).

4234224030021 is an equidigital number, since it uses as much as digits as its factorization.

4234224030021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17424790262 (or 17424790250 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 4234224030021 its reverse (1200304224324), we get a palindrome (5434528254345).

The spelling of 4234224030021 in words is "four trillion, two hundred thirty-four billion, two hundred twenty-four million, thirty thousand, twenty-one".