50221143201440 has 96 divisors (see below), whose sum is σ = 123829616163456. Its totient is φ = 19211386332160.

The previous prime is 50221143201403. The next prime is 50221143201443. The reversal of 50221143201440 is 4410234112205.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (50221143201443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18063479 + ... + 20657481.

It is an arithmetic number, because the mean of its divisors is an integer number (1289891835036).

Almost surely, 2^{50221143201440} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50221143201440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61914808081728).

50221143201440 is an abundant number, since it is smaller than the sum of its proper divisors (73608472962016).

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

50221143201440 is a wasteful number, since it uses less digits than its factorization.

50221143201440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2599302 (or 2599294 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 50221143201440 its reverse (4410234112205), we get a palindrome (54631377313645).

The spelling of 50221143201440 in words is "fifty trillion, two hundred twenty-one billion, one hundred forty-three million, two hundred one thousand, four hundred forty".