508221261199 has 2 divisors, whose sum is σ = 508221261200. Its totient is φ = 508221261198.

The previous prime is 508221261143. The next prime is 508221261209. The reversal of 508221261199 is 991162122805.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 508221261199 - 2⁷ = 508221261071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (508221265199) 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 as a sum of consecutive naturals, namely, 254110630599 + 254110630600.

It is an arithmetic number, because the mean of its divisors is an integer number (254110630600).

Almost surely, 2^508221261199 is an apocalyptic number.

508221261199 is a deficient number, since it is larger than the sum of its proper divisors (1).

508221261199 is an equidigital number, since it uses as much as digits as its factorization.

508221261199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 46.

It can be divided in two parts, 508221 and 261199, that added together give a triangular number (769420 = T₁₂₄₀).

The spelling of 508221261199 in words is "five hundred eight billion, two hundred twenty-one million, two hundred sixty-one thousand, one hundred ninety-nine".