441022221 has 24 divisors (see below), whose sum is σ = 645109920. Its totient is φ = 290306016.

The previous prime is 441022201. The next prime is 441022223. The reversal of 441022221 is 122220144.

441022221 is a `hidden beast` number, since 441 + 0 + 2 + 2 + 221 = 666.

It is not a de Polignac number, because 441022221 - 2¹⁰ = 441021197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 441022194 and 441022203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (441022223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 402951 + ... + 404043.

It is an arithmetic number, because the mean of its divisors is an integer number (26879580).

Almost surely, 2^441022221 is an apocalyptic number.

It is an amenable number.

441022221 is a deficient number, since it is larger than the sum of its proper divisors (204087699).

441022221 is a wasteful number, since it uses less digits than its factorization.

441022221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1625 (or 1622 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 441022221 is about 21000.5290647641. The cubic root of 441022221 is about 761.1790453737.

Adding to 441022221 its reverse (122220144), we get a palindrome (563242365).

The spelling of 441022221 in words is "four hundred forty-one million, twenty-two thousand, two hundred twenty-one".