221000444344 has 16 divisors (see below), whose sum is σ = 421168880520. Its totient is φ = 108688742880.

The previous prime is 221000444339. The next prime is 221000444377. The reversal of 221000444344 is 443444000122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 226434394 + ... + 226435369.

Almost surely, 2^221000444344 is an apocalyptic number.

It is an amenable number.

221000444344 is a deficient number, since it is larger than the sum of its proper divisors (200168436176).

221000444344 is a wasteful number, since it uses less digits than its factorization.

221000444344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452869830 (or 452869826 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 221000444344 its reverse (443444000122), we get a palindrome (664444444466).

The spelling of 221000444344 in words is "two hundred twenty-one billion, four hundred forty-four thousand, three hundred forty-four".