550400120122 has 16 divisors (see below), whose sum is σ = 838266901920. Its totient is φ = 270981195408.

The previous prime is 550400120117. The next prime is 550400120141. The reversal of 550400120122 is 221021004055.

It is a junction number, because it is equal to n+sod(n) for n = 550400120093 and 550400120102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 516172 + ... + 1169287.

It is an arithmetic number, because the mean of its divisors is an integer number (52391681370).

Almost surely, 2^550400120122 is an apocalyptic number.

550400120122 is a deficient number, since it is larger than the sum of its proper divisors (287866781798).

550400120122 is a wasteful number, since it uses less digits than its factorization.

550400120122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1687965.

The product of its (nonzero) digits is 800, while the sum is 22.

Adding to 550400120122 its reverse (221021004055), we get a palindrome (771421124177).

The spelling of 550400120122 in words is "five hundred fifty billion, four hundred million, one hundred twenty thousand, one hundred twenty-two".