50221231019 has 2 divisors, whose sum is σ = 50221231020. Its totient is φ = 50221231018.

The previous prime is 50221231007. The next prime is 50221231097. The reversal of 50221231019 is 91013212205.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50221231019 is a prime.

It is a super-2 number, since 2×50221231019² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (50221230019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25110615509 + 25110615510.

It is an arithmetic number, because the mean of its divisors is an integer number (25110615510).

Almost surely, 2^50221231019 is an apocalyptic number.

50221231019 is a deficient number, since it is larger than the sum of its proper divisors (1).

50221231019 is an equidigital number, since it uses as much as digits as its factorization.

50221231019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 26.

The spelling of 50221231019 in words is "fifty billion, two hundred twenty-one million, two hundred thirty-one thousand, nineteen".