4432213134221 has 4 divisors (see below), whose sum is σ = 4432431243072. Its totient is φ = 4431995025372.

The previous prime is 4432213134199. The next prime is 4432213134233. The reversal of 4432213134221 is 1224313122344.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4432213134221 - 2²⁶ = 4432146025357 is a prime.

It is a super-4 number, since 4×4432213134221⁴ (a number of 52 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4432213134721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109023941 + ... + 109064586.

It is an arithmetic number, because the mean of its divisors is an integer number (1108107810768).

Almost surely, 2^{4432213134221} is an apocalyptic number.

It is an amenable number.

4432213134221 is a deficient number, since it is larger than the sum of its proper divisors (218108851).

4432213134221 is a wasteful number, since it uses less digits than its factorization.

4432213134221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218108850.

The product of its digits is 27648, while the sum is 32.

Adding to 4432213134221 its reverse (1224313122344), we get a palindrome (5656526256565).

The spelling of 4432213134221 in words is "four trillion, four hundred thirty-two billion, two hundred thirteen million, one hundred thirty-four thousand, two hundred twenty-one".