2240420200021 has 4 divisors (see below), whose sum is σ = 2273859307552. Its totient is φ = 2206981092492.

The previous prime is 2240420200019. The next prime is 2240420200037. The reversal of 2240420200021 is 1200020240422.

2240420200021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2240420200021 - 2¹ = 2240420200019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2240420204021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16719553665 + ... + 16719553798.

It is an arithmetic number, because the mean of its divisors is an integer number (568464826888).

Almost surely, 2^{2240420200021} is an apocalyptic number.

It is an amenable number.

2240420200021 is a deficient number, since it is larger than the sum of its proper divisors (33439107531).

2240420200021 is an equidigital number, since it uses as much as digits as its factorization.

2240420200021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33439107530.

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 2240420200021 its reverse (1200020240422), we get a palindrome (3440440440443).

The spelling of 2240420200021 in words is "two trillion, two hundred forty billion, four hundred twenty million, two hundred thousand, twenty-one".