443234220121 has 32 divisors (see below), whose sum is σ = 565332768000. Its totient is φ = 344488314240.

The previous prime is 443234220119. The next prime is 443234220157. The reversal of 443234220121 is 121022432344.

It is not a de Polignac number, because 443234220121 - 2¹ = 443234220119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 443234220121.

It is not an unprimeable number, because it can be changed into a prime (443234220521) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1316701 + ... + 1618693.

It is an arithmetic number, because the mean of its divisors is an integer number (17666649000).

Almost surely, 2^443234220121 is an apocalyptic number.

It is an amenable number.

443234220121 is a deficient number, since it is larger than the sum of its proper divisors (122098547879).

443234220121 is a wasteful number, since it uses less digits than its factorization.

443234220121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302414 (or 302400 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 443234220121 its reverse (121022432344), we get a palindrome (564256652465).

The spelling of 443234220121 in words is "four hundred forty-three billion, two hundred thirty-four million, two hundred twenty thousand, one hundred twenty-one".