4233420343221 has 16 divisors (see below), whose sum is σ = 5856880244544. Its totient is φ = 2717693074944.

The previous prime is 4233420343169. The next prime is 4233420343283. The reversal of 4233420343221 is 1223430243324.

It is not a de Polignac number, because 4233420343221 - 2²⁵ = 4233386788789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4233420343721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 196581615 + ... + 196603148.

It is an arithmetic number, because the mean of its divisors is an integer number (366055015284).

Almost surely, 2^{4233420343221} is an apocalyptic number.

It is an amenable number.

4233420343221 is a deficient number, since it is larger than the sum of its proper divisors (1623459901323).

4233420343221 is a wasteful number, since it uses less digits than its factorization.

4233420343221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393184900.

The product of its (nonzero) digits is 82944, while the sum is 33.

Adding to 4233420343221 its reverse (1223430243324), we get a palindrome (5456850586545).

The spelling of 4233420343221 in words is "four trillion, two hundred thirty-three billion, four hundred twenty million, three hundred forty-three thousand, two hundred twenty-one".