50281271221 has 8 divisors (see below), whose sum is σ = 54159911424. Its totient is φ = 46543672560.

The previous prime is 50281271203. The next prime is 50281271233. The reversal of 50281271221 is 12217218205.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 50281271221 - 2⁵ = 50281271189 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50281271251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35259646 + ... + 35261071.

It is an arithmetic number, because the mean of its divisors is an integer number (6769988928).

Almost surely, 2^50281271221 is an apocalyptic number.

It is an amenable number.

50281271221 is a deficient number, since it is larger than the sum of its proper divisors (3878640203).

50281271221 is a wasteful number, since it uses less digits than its factorization.

50281271221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70520771.

The product of its (nonzero) digits is 4480, while the sum is 31.

Adding to 50281271221 its reverse (12217218205), we get a palindrome (62498489426).

The spelling of 50281271221 in words is "fifty billion, two hundred eighty-one million, two hundred seventy-one thousand, two hundred twenty-one".