50002122121 has 8 divisors (see below), whose sum is σ = 57928095104. Its totient is φ = 42271852320.

The previous prime is 50002122113. The next prime is 50002122127. The reversal of 50002122121 is 12122120005.

It is a happy number.

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 50002122121 - 2³ = 50002122113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50002122095 and 50002122104.

It is not an unprimeable number, because it can be changed into a prime (50002122127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48925245 + ... + 48926266.

It is an arithmetic number, because the mean of its divisors is an integer number (7241011888).

Almost surely, 2^50002122121 is an apocalyptic number.

It is an amenable number.

50002122121 is a deficient number, since it is larger than the sum of its proper divisors (7925972983).

50002122121 is an equidigital number, since it uses as much as digits as its factorization.

50002122121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97851591.

The product of its (nonzero) digits is 80, while the sum is 16.

Adding to 50002122121 its reverse (12122120005), we get a palindrome (62124242126).

The spelling of 50002122121 in words is "fifty billion, two million, one hundred twenty-two thousand, one hundred twenty-one".