1021444005000 has 80 divisors (see below), whose sum is σ = 3190991118480. Its totient is φ = 272385064000.

The previous prime is 1021444004993. The next prime is 1021444005013. The reversal of 1021444005000 is 5004441201.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 34033134 + ... + 34063133.

It is an arithmetic number, because the mean of its divisors is an integer number (39887388981).

Almost surely, 2^{1021444005000} is an apocalyptic number.

1021444005000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1021444005000 is an abundant number, since it is smaller than the sum of its proper divisors (2169547113480).

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

1021444005000 is an equidigital number, since it uses as much as digits as its factorization.

1021444005000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68096296 (or 68096277 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

Adding to 1021444005000 its reverse (5004441201), we get a palindrome (1026448446201).

The spelling of 1021444005000 in words is "one trillion, twenty-one billion, four hundred forty-four million, five thousand".