441321221420 has 24 divisors (see below), whose sum is σ = 931431732000. Its totient is φ = 175641409152.

The previous prime is 441321221371. The next prime is 441321221461. The reversal of 441321221420 is 24122123144.

It is a super-4 number, since 4×441321221420⁴ (a number of 48 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 441321221420.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55438385 + ... + 55446344.

It is an arithmetic number, because the mean of its divisors is an integer number (38809655500).

Almost surely, 2^441321221420 is an apocalyptic number.

It is an amenable number.

441321221420 is an abundant number, since it is smaller than the sum of its proper divisors (490110510580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

441321221420 is a wasteful number, since it uses less digits than its factorization.

441321221420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110884937 (or 110884935 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 441321221420 its reverse (24122123144), we get a palindrome (465443344564).

The spelling of 441321221420 in words is "four hundred forty-one billion, three hundred twenty-one million, two hundred twenty-one thousand, four hundred twenty".