240221303210420 has 24 divisors (see below), whose sum is σ = 576531127705344. Its totient is φ = 82361589672096.

The previous prime is 240221303210417. The next prime is 240221303210423. The reversal of 240221303210420 is 24012303122042.

It is an interprime number because it is at equal distance from previous prime (240221303210417) and next prime (240221303210423).

It is a super-2 number, since 2×240221303210420² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 240221303210420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240221303210423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 857933225612 + ... + 857933225891.

It is an arithmetic number, because the mean of its divisors is an integer number (24022130321056).

Almost surely, 2^{240221303210420} is an apocalyptic number.

240221303210420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240221303210420 is an abundant number, since it is smaller than the sum of its proper divisors (336309824494924).

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

240221303210420 is a wasteful number, since it uses less digits than its factorization.

240221303210420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1715866451519 (or 1715866451517 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 240221303210420 its reverse (24012303122042), we get a palindrome (264233606332462).

The spelling of 240221303210420 in words is "two hundred forty trillion, two hundred twenty-one billion, three hundred three million, two hundred ten thousand, four hundred twenty".