440021000212 has 24 divisors (see below), whose sum is σ = 770823882752. Its totient is φ = 219785724000.

The previous prime is 440021000129. The next prime is 440021000329. The reversal of 440021000212 is 212000120044.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17262637 + ... + 17288107.

Almost surely, 2^440021000212 is an apocalyptic number.

It is an amenable number.

440021000212 is a deficient number, since it is larger than the sum of its proper divisors (330802882540).

440021000212 is a wasteful number, since it uses less digits than its factorization.

440021000212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29719 (or 29717 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 440021000212 its reverse (212000120044), we get a palindrome (652021120256).

The spelling of 440021000212 in words is "four hundred forty billion, twenty-one million, two hundred twelve", and thus it is an aban number.